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Sony Xperia X Performance F8132 confirmed 4G/3G. The phone display only shows LTE, H+ or G when being used for data. As only one SIM is being used for data, in my case LTE is shown above the SIM1 (Telstra) signal strength meter. I can confirm my SIM2 (Optus/Internode) is connected to 3G/UMTS in the screenshots here: If I connect to WiFi, the 'LTE' will disappear on the signal meter, but the phone status screen still shows LTE connection.

And for those interested, if I force SIM1 on to GSM the data connection will move to H+ on SIM2. It seems to preference the fastest possible connection. It's a non issue, But how does it work in practice, how do apps know which sim to use to access data and which for normal telecommunications, is hangouts for example smart enough to send a text using sim 1 over 3G and receive a photo on sim 2 over 4g, do they operate concurrently or will my text not send while its receiving the photo from a different contact?

Or how does the messaging app differentiate between the two active numbers, can you choose which number you're sending from when you send an sms? Will my apps all work in the background utilising Sim 2 on 4g and still keep my phone active and on the network to take calls etc on Sim 1 with 3G? Another piece of information for the wiki would be how much effort is required to get the phone usable in Australia (play store, etc), and what limitations there are after that. From what I have read about the Xiamoni phones, you may need to install a worldwide ROM, need to apply to unlock the bootloader, the location can never be changed to Australia and permission issues with MIUI (some Xiamoni technology I think).

Anyway – knowing that I can get a grey import, and use it without all this mucking around, would be a big help. Not that I am asking someone else to do my research for me though. Very close to buying the Moto G4 Plus, Couple of questions though. Can someone confirm if the 32GB is 3GB of ram? Also can you only buy the 32GB online? I'd prefer to buy in store so I get the phone on the spot.

I don't really care about the extra 16GB as I can throw a 128GB card in but the extra GB of ram may be useful, Is it worth the extra $50 though? Does anyone know a good place I can get accessories from?

I have a bad habit of breaking phones and the boss doesn't let me get a new phone until I have a good case & screen protector for it. Ebay doesn't seem to have much locally. So its not totally obsolete – just depends on your usage Phones that can soft-swap the 3G/4G function between slots remain useful for those whom the dual standby feature is of little interest: data + voice setups and those who wish to use a secondary SIM only for outbound calling. It's not like the other SIM is active when the other SIM is on a call or in most cases even when in a data session. Admittedly, this is about that same level of functionality as possible with a dual SIM adapter without its problems.

However, dual SIM adapters are much cheaper than the cost differential of a dual over single SIM variant of a phone model. I hope this doesn't come through as a stupid question.

Other than using the 2nd sim slot for obviously a 2nd sim or extra storage, what other reasons are people using dual sim phones for. I am looking to uprade to a 4g/3g standby phone also but thinking do I really need it. My story below. I've been using a dual sim phone over the past year and a bit – Oppo R7 and Huawei P8. My main number was used to receive calls as I was on a cheap telstra contract. I used a starter kit to make calls and use data in the 2nd sim.

I have now moved my main number to prepaid porting between providers using cheap starter kits each month. It was so people always see my main number.

I have set up a backup number to accumulate credits when using telstra starter kits (and anyone else in my family). Now I only really use 1 sim (my main number) because I just port between providers. The reason I'd like one as I have one SIM on a PAYG plan with one provider with my 'permanent' number which has a reasonable call rate for calls and txt but expensive data, and I have another SIM with cheap data that I would like to use in my phone as well as my main number. That's probably atypical, but I'm sure the main reasons would be to get a better combination of rates or just to have 2 numbers e.g. Work/private or local SIM/roaming SIM. For some use cases a VoIP provider could be used for calls and txt instead of a 2nd SIM. The reason I'd like one as I have one SIM on a PAYG plan with one provider with my 'permanent' number which has a reasonable call rate for calls and txt but expensive data, and I have another SIM with cheap data that I would like to use in my phone as well as my main number.

That's exactly how I'm using my Moto G2 at the moment. It's crazy how much cheaper it is to have two SIMs compared to one SIM that does both. Has worked well so far, but I'm starting to experience issues in more and more areas that no longer have the 2G available so I'll have to upgrade soon. Moto G4 Plus ( Xt1642 dual sim) support 4g data + voice over 3g at same time. Sort of, with the usual dual standby limitations.

If you are using data and a call comes in on the other sim there are two options depending on which Connection priority you have selected. Data selected: Incoming calls on the non-data enabled SIM go to voicemail if data is active. Voice selected: Data is stopped to receive calls on the non-data enabled SIM. Most users would select Voice as the Connection priority. The main thing is that the non-data enabled SIM can receive 3G calls and isn't restricted to 2G only. I hope this doesn't come through as a stupid question.

Other than using the 2nd sim slot for obviously a 2nd sim or extra storage, what other reasons are people using dual sim phones for. I have a dual SIM phone for a number of reasons; When in Aus I have a personal SIM and a Work SIM in – as phone is dual watch it's a seamless experience.

When overseas I have my Aus personal SIM in and usually a local SIM, mainly for data and local calls. Others have other reasons but dual SIM works for me. BTW Dual SIM adapters don't cut it – dual watch dual SIM phones are vastly superior. BTW Dual SIM adapters don't cut it – dual watch dual SIM phones are vastly superior. Not when 2G is no longer available, hence this thread.

The dual SIM adapters seems to work for some people and unlike some dual 3G/2G dual SIM phones can soft switch the 3G capability between SIMs. There is also a vast difference in cost. It's probably worth pointing out that not all dual SIM active standby phones has the same capability.

For example, I don't think all can accept an incoming call while using data like the Moto G2 mentioned above. Whatever the solution it beats switching SIMs. I think that's pretty bad, actually. If I'm overseas I don't want my phone deciding for me which sim is the data sim In the south coast angus is referring to receiving an MMS. These use a different APN or are at least usually charged differently for than regular internet data. The same would likely occur for SMS reception where SMS is configured to be received over data which is the only way to receive an SMS on 4G (and an option on 3G and 2G). The phone is doing the right thing in my opinion, pretty much what a single SIM phone would do.

The only objection may be if you have the other SIM set with an always on data connection and this session needs to close. For internet data, I'm sure the phone would use whatever SIM its configured to use. You can of course contact the provider of your Australian SIM to disable whatever functionality you wish while you are overseas. I think you should be able to have SMS and MMS without Internet (or GPRS if they still call it that) but YMMV. Alternatively, most phones can have data roaming disabled. As recently reported by someone else in this thread: The RugGear RG730 *cannot* do genuine dual-sim 3g on both slots – it can only do 4g/3g/2g on one slot while the other one (apparently selectable between each) is restricted to 2g only. So that make the RG730 completely useless for what I need (a genuine dual-sim ruggesd non-shonky Chinese branded handset running Android 5.1 or later which supports 3g on both slots at the same time).

There are, apparently, very few handsets that can do it. Hardware design restrictions with the radio side of the things I believe, something that is NOT addressed at all with the 3g/4g (and soon to be 5g) mobile communication standards. Might have to resort to having two seperate phones from December this year when Telstra 2g shuts down. There's a difference between phones that can do 4g/3g on both slots (but not have both sim's 'live' and registered on networks at the same time) and phones that can do *genuine* live 3g (or 4g) on both slots at the same time. By that I mean the phone has both sims active requiring no 'switching' between one or the other to receive calls or txt's.

My current phone is genuine dual-sim at the same time with the main slot doing 3g/2g and only 2g on the second one. Both sims are live at the same time. Any replacement needs to be both a rugged phone (mil-spec tradie style just not a Jing/Zing/Sing/etc. Chinese branded one) and *genuine* 'live' dual-sim capable. (see note 1 below) I don't know enough about the hardware design limitations to know why that's so difficult to achieve with 3g/4g and why it's so easy with 3g/2g.

Perhaps its because 2g radio hardware is totally different, or because 2g and 3g can use the same antenna config in the phone to work but 4g and 3g cannot? Obviously a genuine dual-sim phone needs two sets of radio hardware, meaning two antennas, and they have to be able to work without RF interfering each other within a very small space to communicate with mobile cell towers that can be anything up to 50+ km away (in clear open line-of-sight conditions). • – Bear in mind that ALL mobile phones are made in China, so even a branded phone is actually at it's core a Chinese-factory raw product. My current phone is actually a GoWell Electronics S something or other according to Telstra's 'danger will robinson you still have a 2g capable phone' letters.

I suspect battery life is an issue given duplicate hardware? Yep that's definitely an issue. 3g (and to a degree 4g) radio hardware is extremely power-hungry compared to older 2g radio hardware, and it's a problem that is difficult to solve with the inate trend to making phones smaller and thinner.

Battery technology is not evolving to meet the power needs, and making phones thinner/lighter means more charge-dense battery chemistry is needed which comes with increased safety risks. The best phones ever for long battery life are the Sonim XP3 series 2g phones – I used to have one of those and it's battery lasted a whole week between charges if I wasn't using it much. My current dual-sim Toughshield phone can't go more than a day on standby without a charge unless I turn off mobile data and basically cripple all the handy apps (like gmail). And it's only a 3g/2g dual-sim unit.

By that I mean the phone has both sims active requiring no 'switching' between one or the other to receive calls or txt's Yes this whole thread is discussing the phones that can do dual standby on their both sims in 4g/3g. People here are not discussing a different topic than you do. I am not sure where you get from and imply they do not do it than you 3g/2g phones. The thing these dual 4g/3g phones can't do is have both sims active for data: only one sim can be used at a time to receive data. While both sims are active for phone calls and sms as long as you do not intend to use data from the data sim while have phone call from other sim. It is confirmed that once a call comes in from the other sim, your data will be suspended until the call finishes. Why is there a lack of mobiles with 3 slots.

2x sims and 1x micro SD which can do 4g+3g. Because then you're compounding the problem even further.

A real genuine dual-sim phone (regardless if dual-active or not) requires two sets of radio hardware otherwise it's not possible to have two sims active and registered at the same time. To do that with three sims while definitely possible then requires three sets of radio hardware, a LOT more battery capacity, plus you get serious problems with antenna design. Sd slot has nothing to do with radio hardware or how many sets of radio hardware (therefore how many active/registered sims) a handset can support. In my current android phone there's no correlation between sd card access and sim cards – apps, etc. That want to use the sd card can use it and that's got nothing to do with which sim might be allocated to data connections, etc.

The phone could have ten sims and ten sets of radio hardware and (battery and processing power notwithstanding) have all 10 sims active and registered, and the sd card is sitting there available to all apps and factory-supplied software modules to use as necessary. Maybe later Android versions or IOS versions do actually have the ability to configure which SIM can access the sd card but I haven't come across one that does yet with the phones I've owned. Sammy S7 and LG G5 both have the second slot, which can only be sim OR a micro SD. Or you have to do some tinkering and gluing to make a bastard of a card Only the S7 dual sim import version can use the second sim as a dual sim setup.

The local version looks like a second sim but it only has SD card functionality. The import version can with a bit of tinkering be used as a second sim with an SD card but it is a tricky mod from what I have read.

The Australian version is only a single sim phone. The Note 7 dual sim version will get an upgrade to 3-4G on the second sim later in the year & hopefully it will be the same for the S7.

You can do LTE/WCDMA/GSM on one SIM and WCDMA/GSM on the other. So that means 4g/3g/2g slot 1 and 3g/2g slot 2.

That's ok *providing* it's possible to do 4g or 3g on slot1 at the *same time* as having a second sim active on 3g. That's the crucial aspect, as if the first slot of a phone can do 4g/3g/2g but the second slot *cannot* do at least 3g at the same time (and is limited to only do 2g any time the main sim is in 4g or 3g mode) it's not solving the problem of having a genuine 4g/3g dual-SIM phone. The problems at the moment are that most of the dual-sim phones that do support 4g/3g/2g cannot do anything but 2g on the second slot if the first slot is doing 4g or 3g. That's why the RugGear RG730 I was almost going to buy is now useless as a purchase target unless 2g stays operating past 2017 (which it won't). I'll keep using my existing rugged 3g/2g dual-sim unit until 2g is killed off as I need a rugged (not consumer-grade) 4g/3g genuine dual-sim phone or I'll change to using two seperate phones until there's a workable offering in the ruggedised arena.

I'll keep using my existing rugged 3g/2g dual-sim unit until 2g is killed off I've got an LGv10 dual sim, I have a Telstra sim in port 1 and Amaysim in port 2 if there's no data transimission, there are no logos above either signal strength bar. In the sim management menu, I have do denote which sim has data.

I will then get a 3g/ 4g icon above the respective signal bar. If I use a signal / lte style widget, 'UTMS' is listed for the sim not using data, so I'm pretty sure I can't have 4g and 3g together. The problems at the moment are that most of the dual-sim phones that do support 4g/3g/2g cannot do anything but 2g on the second slot if the first slot is doing 4g or 3g.

Repeat: this is why we have this thread and the wiki for the phones that are qualified to 4g/3g dual standby. Dual sim phone released this year with proper hardware have already made what you called '4g/3g genuine dual-sim' happen.

But you are right, there is no rugged/industry-specific phone with such capability yet, as technology does not spread fast enough into enterprise/industrial fields. So if you need a rugged dual 4g/3g phone, you have to wait, or pick up a moto g4 plus and find a rugged case. I'm looking for a 4G + 3G phone under 5 inch screen. Expectations are Android N capable, good camera, supports all Telstra bands and not too expensive (under $500?) The Lenovo ZUK Z2 (non Pro) version should fit the bill, except for all Telstra LTE bands. Snapdragon 820.

Got it for about $400, but had to reflash to official ROM, as the custom multi-lingual limits update options. The ZUK forums has good instructions for that. Definitely standby 4G capable in both slots (the nominate primary SIM gets 4G, the other gets 3G, but doesn't matter which slot you use). ZUI very iOS like, so unlikely to officially come into Au due to copyright, but works great for me as my primary is an iPhone.

I was hoping to find a dual sim replacement with better reception but not necessarily blue tick If a Telstra sold a blue tick dual sim phone the dual sim functionality would probably be disabled. One of the advantages of dual sim phones is having one sim for data and the other for calls to reduce how much you pay to the carriers. Don't think any of them would sell dual sim phones for this reason so there will probably never be a blue tick dual sim phone.

Vodafone had a dual sim phone a while back but they crippled it by disabling one of the sim slots. Anyone seen the Alcatel Idol 4 and 4S? Looks like good competitors to the Moto G4s, and a bit smaller which appeals to me.

I couldn't find any mention on here, sorry if I missed it. Not sure if 4G+3G but has a Snapdragon 617 so hopefully will be. Looks like all 4G bands except B5, combined SIM2/SD slot, RRP ~$400 for 5.2' Idol 4 and $600 for 5.5' Idol 4S.

Or Also Blackberry have released a rebranded version of the same phone (DTEK50), but seems to have disabled the second sim slot and made it SD card only. I'll be using my 3g/2g dual sim phone until the day telstra turns off 2g. Then I will revert to two seperate phones. Windows Se7en Activator Extreme Loader 3.503. Going to be no choice since my phone(s) need to be rugged ones due to the type of work environment. Sadly it's not really possible to make the telco's keep 2g going (except on Xmas Island) if they've made commercial decisions based around the licensing requirements for the spectrum allocations and other factors.

I boycotted the Census and won but don't think I can win at keeping 2g going as a single consumer of the services. Hi All Found this form and associated wiki to be very helpful.

However there does appear to be a discrepancy with the listing of the ASUS Zenphone 3 models, here is an exert from the ASUS spec sheet. It's stated as confirmed at launch but the manufacturers own spec sheet doesn't appear to support this. SIM Cards Dual SIM card SIM 1: 2G/3G/4G Micro SIM Card SIM 2: 2G/3G/4G Nano SIM Card Dual SIM Dual Standby Only use the nano SIM card or the microSD card at a time Both SIM card slots support 3G WCDMA/ 4G LTE network band. But only one SIM card can connect to 3G WCDMA/ 4G LTE service at a time. Maybe someone can confirm if they have one as has been done for the Sony X Performance. I am looking at getting the Sony Xperia XZ dual sim and to replace my Galaxy dual sim. As it seems to be an updated version of the Xepria performance which is 4g and 3g sim, I presume it will also be dual 4g and 3G.

Does anyone have any experience or confirm the dual sim feature will operate on 4g and 3g at the same time. The manual on the Sony website for the dual sim xz says the following. Your device supports the use of two different networks at the same time. You can select from the following network mode combinations when two SIM cards are inserted in your device: One LTE network and one WCDMA network One LTE network and one GSM network Two WCDMA networks One WCDMA network and one GSM network Two GSM networks For each SIM card, you can set your device to switch automatically between mobile networks depending on which mobile networks are available where you are. You can also manually set your device to use a particular mobile network mode for each SIM card, for example, WCDMA or GSM. Different status icons are displayed in the status bar depending on the type or mode of network that you are connected to.

Refer to Icons in the status bar to see what the different status icons look like. The primary consideration (for me anyway) is that I need a rugged dual-sim phone that will not force the second sim to only use 2g when the first sim is also active. I nearly bought a Ruggear RG730 a while back until I discovered it was NOT a genuine 4g/3g dual sim phone and still forced the second sim to only be capable of 2g use when the first sim was active on a call or via a 4g or 3g data connection. How To Hack Drivers Ed.

My current phone (Toughshield R500+ – Toughshield was taken over by Kazam and the product line dumped) is 3g/2g main slot and 2g only second slot. I have no problem with a phone that does 4g/3g main slot and 3g only (or even 4g only) second slot, but it must NOT prevent both sims being active and registered on a network simultaneously.

My current phone handles incoming calls at the same time on both SIM's (if they is to occur) because both use completely seperate radio hardware, but I suspect because sim 1 is normally connected via 3g/umts/hsdpa it's radio hardware won't 'interfere' with sim 2 which only has radio hardware supporting 2g/gsm/gprs/edge. At present because I still can't find a good quality non-ning-nong-no-name-ding-dong branded rugged dual sim 4g/3g phone I'm going to two seperate phones. My second sim stops working in less than a month, if Telstra really does disable all it's central 2g servers (HLR, etc.) to in-effect cripple 2g and shut that network done on Dec 1st. I thought the dual sim S7 edge (and non-edge for that matter) variant came only in an Exynos chipset variant, and therefore unlikely to support simlutaneous 4G+3G? Where did you find out that it can do simultaneous 4G+3G, is there a screenshot somewhere?

It is only available with the nougat update. I noticed it when I updated the firmware to nougat. I am sure that there is a screenshot somewhere.

I haven't looked for links on this but I doubt that I am the first person to notice it. If you do find a link post it anyway. If you click on the specs tab it says 'SIM TypeDUAL* Nano-SIM (2nd Sim 3G)' I was a little sceptical as it doesn't explicitly say what it does simultaneously, however, when googling around I found the following statement from Samsung Hong Kong website: – Features and specifications are subject to change without prior notification. - When one of the SIM slots supports 4G or 3G networks, the other SIM slot supports only the 2G networks. - When one of the SIM cards supports 4G or 3G networks, the other SIM card supports only the 3G or 2G networks, vice versa.

(Only applicable to Galaxy J7 Prime, Galaxy C7, Galaxy C5) So not only the Galaxy C5, but it seems the Galaxy J7 Prime and Galaxy C7 as well. I did find the following link to a singapore forum claiming 3G support for dual sim on the Galaxy S7, only in selected countries, I think I am reading it right: Samsung SG state it will come by Q4 2016 so they still got time. Samsung did release the 3G suppprt for dual SIM with firmware: G935FXXU1CPJ2 for Malaysia, Thailand, Vietnam, Myanmar and Philippines which update the Android Security Patch to 1 October 2016. Those countries share the same CSC code with us which is 'OLB'. Singapore is the only country left out in this update. Nobody knows.

As for your question to Android 7.0 update, public beta testing just started 2 weeks ago for USA, Europe, UK, China and S.Korea only so don't expect official stable release to reach Singapore that fast. Ok just to update the Samsung S7 dual sim model. After some testing I unfortunately have found out that dual sim on 4G/3G is NOT working. I generally don't run dual sims but today I was going to post a screenshot showing that it does display 3G on the second sim. In the menu that is the case.

However I changed the data sim to the second one and the first one fell back to 2G. So I guess that is why nougat is still in beta. I do believe that it will have this functionality soon but for now it is not working. Sorry for any misinformation. 'Netcom 3.0' (as described here: Unfortunately it seems to be a Xiaomi term that is not used by any other manufacturer.

BTW, interesting when I read about Netcom 2.0 not being able to register with two sims from the same provider. I wonder if that has anything to do with the fact that some Chinese dual sim variants had only one IMEI, while their international variants had two IMEI. Would be interesting to test whether the Australian carriers care if they see two IMEI on their network at the same time. I have always had dual SIM phones with two IMEI, otherwise I would have tried it out myself. How does the dialer and SMS apps handle these dual SIM phones?

Is it obvious which number incoming calls or sms are from? And how do you handle outgoing calls/sms? Depending on the phone some are more obvious than others. As jokiin mentioned when calling all can be set to prompt which sim. The better ones prompt you for the name of the SIM (that you define) instead of just he number making it more obvious.

With SMS it can be less obvious seeing which sim the message came in on. More importantly it can be hard to see the sim sms is sending because they don't normally prompt, you have to be careful to look at the sim indicator near the 'send' button. Some times they give you two buttons, somtimes there is a tiny subscript indicating the sim number, with the not so obvious need to press an hold the send button to change the sim. Some times when you start typing the sms the sim indicator disappears. When taking on my first dual sim, I did make a few mistakes sending work stuff on my personal SIM, but quickly got the hang of it, until I changed phones. I used to use Dual Sim Selector (apk) from pixel rush. It can automate a lot of things so you are less likely to make a mistake.

For example when calling people from my work contacts (synced with activsync to my work exchange server), I can set it to automatically use my work sim, or even delay the call for 2secs to prompt me for a sim in case I wanted to override. I haven't got it to work on my latest phone but if they fix the bug I'll be using it again. I used to use Dual Sim Selector (apk) from pixel rush. It can automate a lot of things so you are less likely to make a mistake.

For example when calling people from my work contacts (synced with activsync to my work exchange server), I can set it to automatically use my work sim, or even delay the call for 2secs to prompt me for a sim in case I wanted to override. I haven't got it to work on my latest phone but if they fix the bug I'll be using it again.

That sounds very handy! I do try to make sure all my work contacts are in my work google account, and personal kept separate, so that sort of automation would be really handy. Cheers for the info.

Now to try pick a phone. ~5', decent battery life, 64+GB storage, NFC, dual sim, doesn't look like crap! Ot sure if we'll get a response as the last post was back in June. Would you believe I got a response: After checked with our in-house technicians, we have been advised that the LG G5 Dual SIM LG-H860N supports 3G calls while one SIM is assigned 4G mobile network even the screen is showing VoLTE. I am sorry that we cannot provide screenshots for now since we don't have the unboxed LG G5 on hand for review. I will try to repost the screenshots once available Looks like there is a good chance it will do it, but with all this confusion only screenshots of the SIM status will settle it once and for all.

What a farce from the manufacturers. Why would Motorola release a new phone with only 2G available on the second sim (the Moto G4 Play)? Agreed, any manufacturer releasing a dual SIM phone here in Australia should be very explicit in declaring the 2G limitation. If not surely consumers will be able exercise their rights about it not being fit for purpose.

The specs I'm looking for are: maximum screen size: 5', 4G bands 3, 7, 28 and 40 on at least sim 1, minimum 3G on sim 2, budget up to $300. From the Wiki link, it looks as though there is no such phone on sale in Australia and dubiously anywhere else in the world. Kogan have a parallel import Moto E3 but it doesn't have band 28. Not for $300. Due to my phone being dropped and needing to purchase right away, I did not have the luxury of waiting it out for suitable products to be released.

On the flip side I did not have to think about it as there was only one option, but I did have to spend $600. Hi All, The telstra 2g will be switched off tomorrow (1st Dec 2016). I am using samsung s7 edge duos. (SM-G935FD) Voice/text with Aldi mobile (telstra network) and data on optus. I noticed when I first set up to have both sim working last time (Jan2016).

The phone only allow me to choose 4g/3g on one sim and 2g only on the other. Recently after the phone last phone update (Oct2016).

I realised one sim allow to be 4g/3g and the other allow to have 3g/2g. I am not sure is that means i will still able to have both active after the switch off. The current sim status on the phone stated one sim is on LTE and the other is on UMTS. I think we should be able to find out tomorrow. Attached screenshots. I'll be interested to see what happens with my dual sim S7 (SM-G930FD) tomorrow as well. Both SIMs are on Telstra.

I ran an update this morning that had been available since 3rd November and I seem to have the same option for 2G/3G on the second SIM but I don't know if that option was there prior to the update. I'm on stock Android 6.0.1 and Baseband G930FXXU1BPJG. Phone is UAE variant. I've just checked my phone – like yours it is a UAE S7 Dual Sim SM-G930FD. Baseband was G930FXXU1BPHJ, and the second sim could only be 2G – changing the 2G sim to any other option automatically changed the other sim to 2G only.

I did a manual update, and downloaded & installed the available update. The update was G930FXXU1BPJG After installing this update, my sim behaviour didn't change – 1 sim still has to be 2G only. Not sure what the difference is between yours & mine. So, the second sim (Telstra) in my OnePus 2 dual sim phone no longer operates after Telstra shut down their 2G network overnight. I'm looking for a replacement phone and would really appreciate any recommendations. Key requirements are dual sim (obviously the second sim is 3G and not 2G when on standby), Snapdragon 820 or higher CPU, 5.5' screen, NFC capable (for Android Pay) and QC2/3 charging. Band 28 support would be great but not essential.

Currently, the Xiaomi Mi 5s plus seem to top the list (based on my investigations thus far). TRIPLE SIM This thread seems to relate to dual sim phones but for years i have used triple sims for businesses and personal use which has been very practice, Of course today i find that my Acer E700 tripple sim smartphone now only has one active sim as i am with telstra, Cant believe it. I knew nothing about this happening.

Perhaps ive been living under a rock! I have googled but cant seem to find triple sims with all three on 3g or 4g at once, Really at a loss. Maybe i switch to Voda until next September and hope phone manufacturers get with the times by then Dave. Triple and quad SIM phones have been around for years I have been using dual sim phones for the last 5 years, and this is the first time I've heard of a triple SIM phone.

You learn something new everyday. Can't see any manufacturer rushing to replace them with multi 3G/4G models anytime soon Agreed, it will need a lot more telcos to shutdown their 2G networks. I'm surprised we have the capability with dual-sim phones now, I didn't think the dual-sim market in Australia had that much influence as the phones are not sold by the carriers. Maybe there was a bigger market in Singapore that had more influence.

I'm surprised we have the capability with dual-sim phones now, I didn't think the dual-sim market in Australia had that much influence as the phones are not sold by the carriers It's people holding onto old feature phones that had GSM. That's why we still have the 2G around. A long time ago they were the bee's knees. Still people using them, I think. Re: Australian dual-sim, it's the telcos who are preventing OEMs from making available duals. Actually no one except the customer benefits (we buy less phones and we make smarter use of plans. Both are no-win for the telcos/retailers/OEMs).

For Samsung Galaxy S7 Duos(SM-G930FD) users: I can confirm that dual sim cards are working on 4g + 3g network mode on the following firmware: PDA G930FXXU1CPK5 with CSC G930FOLB1CPK5 This firmware hasn't been uploaded on Sammobile.com yet. So, firstly update to the previous version (G930FXXU1CPJ2+G930FOLB1CPJ2), and then use OTA or SmartSwitch program to update to the latest one.

Download link: The previous version (G930FXXU1CPJ2) had a bug in switching the network mode, and the latest one fixed it. S7 Edge users can do the same thing. Download G935FXXU1CPJ2 from Sammobile and update to CPK5 via OTA. Difference between OLB (SE Asia) and XSA (Australian) versions: some bloatware and Samsung Pay. Cannot use Samsung Pay in Australia if your CSC is not Australian version. So you expand the zip file and use ODIN for all 4 files or only PDA and CSC? Basically flash all files in the stock firmware ZIP, otherwise you cannot update to CPK5 via OTA or SmartSwitch.

If your firmware combination is different from Samsung's stock one, you cannot get update. It will just show that the current version is up to date. Also, does this wipe the phone? (I think it will, from memory.) Unless your current CSC version is OLB (check it from *#1234#), it will wipe the phone. If the current CSC is OLB, use HOME_CSC_ file for flashing to avoid wipe out.

I edited the wiki and added a new field and clarification as all phones listed are dual stand-by phones. Some phones may be Duel Active but need double fact checking as I went of GSM Arena. For me I love streaming music and using the net for hours on my data only sim and if I got a message on my other sim want to be able to reply without any interruption. If anyone knows any Dual Active phones that are 3G/4G you can add or edit the wiki in the Mode: field Wiki's can also create a searchable table which might be good to look into if this becomes a popular listing. Are you sure about this? I thought the same thing as it said on the information screen that 4G/3G was available but when I tested one sim was 4G & the other turned out to be 2G.

The same issue happened to me when my S7 was on G930FXXU1CP'J2' version (before OTA update). Check your firmware version in *#1234# menu and make sure your AP is G930FXXU1CP'K5'. Double check the last two digits which should be K5, not J2.

J2 version had the bug that you mentioned, but it's fixed in K5. Also, your CSC should be OLB, not Australian one. When I switched my CSC to XSA from OLB, the second sim only works in 2G mode. So, make sure the CSC is G930FOLB1CPK5. +1 re Samsung S7 Duos. Really am skeptical. 3G on the second sim but if you try to use it then it will drop down to 2G.

With G930FXXU1CPK5 firmware (again, K5, not J2), I confirm that I can use the main sim connected to 4G or 3G data network and at the same time the second sim connected to 3G network for call&SMS only. I can make a phone call using my second sim (Telstra prepaid) while my main sim (Optus) is connected to LTE. Of course, the second sim cannot be used for data connection although it's on 3G network.

The second sim can be definitely used for a voice call and SMS messaging while the main sim is connected to LTE network. One thing I just noticed is that the data connection on the main sim will be lost during a phone call using the second sim. Once you start a phone call with the second sim, the main sim's data connection is lost and cannot use internet during the call. It is instantly recovered after the call though.

If you have the s7 working as dual 3g/4g post some pics to prove this please as I have G930FXXU1CPK5 firmware that you mention and 2nd sim only operates on 2g when the other sim is 4g. @Jjayj I'd also appreciate some screenshots of your SIM status to confirm simultaenous 4G/3G on dual SIM. I want to pull the trigger on an S7 dual sim (non-edge) for my father in law but the inconsistent reports are holding me back. @onemal you have confirmed that your firmware is G930FXXU1CPK5 but can you also confirm your CSC, is it OLB? I have moto g2 now that 2g has been stopped I can only use one Sim at a time. So when I'm using Sim 2 which is most of the time I miss calls and text on Sim 1 where ad before I used to see them when 2g was active.

I have a grandfathered prepaid encore in Sim one which I use for my calls and text which I want to keep and the expiry isn't until 2023 and a prepaid plus in Sim 2 that I use mainly for data. I'm after a dual Sim phone for under $350 So I am thinking I'm after a 4g /3g phone right or a 3g/3g? Can anyone tell me which phones would work for me Thanks:). I have also dragged my voip home phone out of long-term storage, dusted it off, plugged it in, and confirmed that the S7 now accepts calls on both SIMs without having to switch the non-Telstra SIM away from LTE/3G. I'm really happy about this 'cause buying another handset so soon after getting the S7 would have been annoying, but not as annoying as having to carry a second phone around with me. I had no idea it already had the hardware for the job.

Thank you to Jjayj and to the Whirlpool hive-mind for saving me a few hundred bucks. Is there any 4g/3g dual sim unlocked phones for under $100? If not what would be the cheapest i could buy from Australian store? No grey market, no ebay nothing. A new chipset/firmware is required to support 4g/3g which costs $$$ and Australia isn't a country which dual sim is a priority. Cheapest device right now would be the Redmi Note 3 Pro Prime (Kate) ~$217 for the gold model Pumpino provided links here to flash the phone: **edited with newer links only negative thing i can think of is that this phone has no NFC and might be too big for some at 5.5'. Can anyone please confirm for me that this one is dual sim 3g/4g?

Yes the xt1642 is dual SIM + dedicated memory card Be careful, this phone comes in single sim and dual sim variants. The Australian Motorola website says it is the XT1642.

This site that lists all the variants but says it is a single SIM variant. Other sites say it is the dual SIM.

Since you will be buying from an official Australian channel where the local telcos seem push against dual SIM phones, make sure you examine it carefully before purchasing. Both are 'active' in that sense (otherwise what would be the point). Wikipedia provides the best description imho Dual standby phones, such as those running on Mediatek chipsets, allows both SIMs to be accessed through time multiplexing. When making or receiving calls, the modem locks to the active channel; the other channel would be ignored and thus unavailable during the duration of the call So if you have the SIM1 as your data SIM it will drop out when a call is received on SIM2.

Equally any calls on SIM1 when you are on a call on SIM2 go straight to voicemail. For anyone who has a dual SIM phone with a Telstra SIM in the slot that does not support 3G/4G but has not yet replaced their phone with a 3G/4G+3G model, there are some workarounds in the short term while you are deciding what to buy. I picked up a Huawei GR3 last week on special for just under $200 and was surprised to see that it was dual SIM 4G/3G.

Seems to be a decent phone for the money, solid build, with 2Gb/16Gb internal memory, which compensates a little for the SD memory card being displaced by the second SIM, if used. I don't have a second SIM card available to try this, but I may have misunderstood the wording of the GR3 manual, which talks about selecting a SIM card slot as 4G/3G. If the chipset doesn't support 4G and 3G across the two SIMs, then the phone presumably cannot do that. Does anyone have a drop box link or similar for firmware and software required for 3g on 2nd sim? I followed Jjayj's instructions from a couple of pages ago (snipped so as not to upset the forum software by quoting more then I type): For Samsung Galaxy S7 Duos(SM-G930FD) users.

So, firstly update to the previous version (G930FXXU1CPJ2+G930FOLB1CPJ2), and then use OTA or SmartSwitch program to update to the latest one. Download link: My last few phones have been purchased through Kogan. There are probably cheaper options, but I haven't had a problem with them after getting over the shock of the first one turning up set to Polish (thank you Google Translate for getting me out of that one). Does anyone know of there's any updates for a Motorola G2 2nd generation that would enable me to be using Sim 2 as data and allows me to see if a getting a call or text on Sim 1 As since Telstra shut down 2g I can't see this feature anymore so I have to flick between Sim selection during the day to see if I've missed calls or text. I've heard on other phones an update can restore 2sim phones again. If not I know my options would be. Buy a Motorola G4 plus.

Use two single phone Sims Get rid of one of my Sim numbers. Does anyone know if the nougat update for the S7 & Edge provide 3G on the second sim? The SE Asian Marshmallow firmware already does, so we know that one will. I think you're asking if the XSA generic Australian one will as well when it goes Nougat and to that we don't know. I'd say it probably will given the way Samsung seems to like to use a common base for all their S7 firmwares, which is how the XSA currently supports the FD model even though it's not available in Australia.

But it's a case of wait and see. >>>>>>>I followed Jjayj's instructions, and now have my S7 dual sim on Malaysian firmware and running 4G on 1 sim & 3G on the other. Both sims are Telstra, and both are working. Hi Geedog do you specifically have the malaysian firmware rather than the THL firmware that is specified in previous posts? Are you able to link to the firmware you have installed? I've flashed the THL firmware and I've noticed that Sp02 measurement is now not possible from S health.

Does the Malaysian firmware allow you to measure Sp02? Does anyone know if I change from THL to Malaysian or any other SE Asian firmware does it require a complete wipe? Is there a way of doing this without a complete wipe?

Anything else? No real budget just want the best for work The wiki link at the bottom of the page pretty much sums up all the current dual sim 4g/3g phones currently available and my suggestion would be the same a daft above.

You can't go wrong with the Moto Z Play, especially with its incredible battery life. I have the Moto Z Play and usually get at least 1.5 to 2 days on a single battery charge with heavy use of the phone. With light use, at the end of the first day, I'm often on 70% of battery remaining which is definitely good for another day of use without charging it up.

Thanks for thr feedback, I read on here someone said the maps dont rotate with thr direction you are going as there is no built in compass. Then whoever wrote that, they are incorrect, the maps do run in the direction of the vehicle.

The only thing missing is the magnetic field thingy?, which without you cannot use a compass. This does not affect the performance of the built in GPS or mapping. I've been using Google maps for years, and if it were to not show the correct direction I were traveling in, I would not have purchased this phone. Hope this helps.

Hi all, anybody got any proof on the following phones: Sony Xperia Z5 Premium 4G E6883 Dual Sim (Stand-by) OnePlus 3T A3003 Dual Sim (Stand-by) 4G 64GB So far I am tossing up between the Moto G4 Plus and the Z Play to replace my Galaxy S4 Mini dual sim. I ain't fancy but need a good dual sim with strong connectivity for remote field work (Cape York) and a great camera for family pics. A dedicated micro SD slot is required too. A bit of grunt is a bonus – the S4 Mini was a bit of an exercise in patience at times. I'm going to buy s7 from China, the model is g9300. I'd be very cautious about getting that one.

Aside from the differences in frequency support the software is very different as well, because of the censorship in China it doesn't come with any of the Google stuff that you'd normally expect of an Android device. Also, due to the different hardware you can't simply flash a different firmware that does have all that stuff, such as the Aussie (XSA) one, it simply won't work. The majority of people in Australia with a Duos S7 are getting G930FD (for the standard, flat S7) or G935FD (for the Edge S7). You can get them from grey importers like QD_AU very easily. I thought the Oz versions were 3G/2G, and there is no 2G any more. There are no Oz versions of S7 and S7E duos. The international version is the SM-G930FD (S7) and SM-G935FD (Edge).

Check their bands at frequencycheck.com, but they're fine for here. There's also a Chinese version, G9300 but it doesn't have the bands and is for the Chinese market. The 930FD amd 935FD will arrive with o/s firmware (might be SE Asia, might be Middle East). As Seawolf says there's every chance dual will work 4G+3G out of the box or at least after OTA updates have come down. Give it a go and see what happens.

If it doesn't work after all OTAs, then check what the CSC is (use the 'Phone Info *Samsung*' app) and this will explain. You may need to apply THL f/w. That's what I did. I have too been looking for a dual sim 4g/3g phone and checked out the specs of the Samsung C9 pro from 3 different suppliers and there is different information about this phone which I don't know what I can believe. The below link states this phone is 4g+3g dual sim active but also states that it has a quad core CPU. No mention of 2g.

The below links states the CPU is Octacore and runs on 2g, 3g & 4g networks. They also state that this is a dual sim standby phone. I presume that the 2 links that provide the same information about this phone is likely to be correct? Or is it possible that different suppliers have different versions of this phone? I currently own a samsung s5 dual sim which has been working very well until Telstra turned of the 2g network. My other sim from Kogan runs on the vodafone network but is now limited to only 2g data when I use the kogan network as the Telstra sim can't make or receive calls when I switch to Vodafone using 4g data option.

I want To make sure that I don't waste money on the samsung Galaxy c9 pro if this phone is deamed as a single sim phone when vodafone switches off the 2g Network later this year. I have also considered the Moto Z but I am not sure if this is dual standby or dual sim active. I want to make sure that both sims are available to receive and make calls anytime when I need to. I'm not all that fussed at this stage if one sim can receive calls while I am talking on the other sim. I have also heard that dual sim active phone emits twice the radiation as a single sim phone but I'm not sure how true this is.

Anyway, any assistance on the above is appreciated. Checked out the specs of the Samsung C9 pro from 3 different suppliers and there is different information about this phone which I don't know what I can believe.

The site below seems pretty good to me. I used it when buying my S7Edge Duos (which works 4G+3G with the SE Asia firmware). S7E is dual standby, I believe.

So both lines can receive calls even during a call, but cannot both be open at the same time (my understanding anyway). It says the B7 2600 band is missing but not all AU carriers need that one..

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