yashsingh1/xdaforums huggingface dataset:
[Android General] ProfesorYeow:
The majority of dual sim phones have a WCDMA(3G) and GSM (2G) sim card slot as the primary slot and a GSM only sim card slot as the secondary. This means that only one sim can use a 3G connection, the other sim will only be able to pick up a 2G signal. So as long as you don’t plan on using the 3G internet connection on both sims you’ll be fine. The 3G sim card slot is marked with a “W”, the 2G sim card slot is marked with a “G”. There are plans for newer dual-sim Android phones which have dual 3G compatible sim slots.

When you turn on your phone you are greeted with two signal bars at the top of the phone, the first one is for the first sim slot, the second one is for the second sim slot. The majority of phones work in a dual standby mode, whereas a minority work in a dual active mode. Dual standby is when both sims can work at the same time, but say for example you use one sim card to make a call, the other sim card will not work and be on standby for the duration of the call. Dual active is where both sim cards will be active all the time, even during calls. An easy way to get around the Dual standby limitation of turning one sim off when you’re on a call is to set up call forwarding on both sims to each other. This means that if you are using Sim 1 on a call and someone calls you on Sim 2, which is on standby, the call will be forwarded to sim 1 with the active connection and will be listed as a waiting call which you can choose to answer. Simple!

View attachment 1534336

You can manage both Sim cards from the settings. Just click on sim management at the top. Here you get the option to turn the Sim cards on and off at will and you can set the defaults for each sim. For example I use 3 as my data connection, where as I have O2 as my default for voice calls. You can also set the phone to always ask you which sim card to use. The picture below shows you what it looks like when you set it to “always ask”.

View attachment 1534339

You can also assign contacts to certain Sim cards, this is useful when differentiating between work colleagues and personal contacts. The call/texts goes through on the sim of your choice no matter what. This can be changed from the contact itself, or from the sim management settings.

View attachment 1534340

When you get a call or text, or if you send a call or text, the phone will display the Sim used. For example, you can see that one text was from my three number, another text was to my O2 number. You can also change these settings on the go. For example, when in the dialer or messaging service, drag down the notification bar and you get an option to switch to a different sim card as default.

Using a dual sim phone on Android is simple. You have all the options you need at the touch of a button.
[Android General] hm_fa_da:
how to set to ask ?!

My phone is LG optimus L5, E615, dual sim.

and android version 4.0.4 .

it has a shortcut key for changing primary sim for outgoing calls and messages but i want to set it in a way which ask me each time before making call or sending sms ! because i sometimes will forget which one is set as primary !

but in phone settings there is no option to choose it :((

( in my phone, it's not like what you described here )

is there any app for this purpose ?!
[Android General] Flow:
So I have SIM1 for private contacts and SIM2 for work in my phone which runs Android 4.2.1.

I've used the Contact Binding to bind all the contacts from work to SIM2.

But when I choose a contact from work to call, the phone still pops up the box to choose via which SIM I want to make the call.

It does show a sort of favourite logo next to my work SIM, but what is the use of Contact binding if it still asks me for the SIM.

Anyone who has a solution for this problem? I can't figure it out.
[Android General] Flow:
I think this SDK / API from MediaTek is being used on the Dual SIM Android phones with MediaTek SoC:

http://developer.mediatek.com/mre/en
[Android General] Flow:
Added my question on MediaTek's MRE site:

http://developer.mediatek.com/mre/en/question/6952
[Android General] BaSch83:
I had the same problem with jiayu g4 (is it a problem?)

I bind my private and work contacts to the simcards, and in settings i can choose a standard calling sim or "ask each time".

If i choose a standard sim then contacts binded to this sim are dialed directly, but on other contacts the phone will ask every time.

Is there any solution to dial contacts immediately?
[Android General] Flow:
Thanks for the tip, I'll try that :)

It's not really a problem per se, but because my car sytem doesn't know how to deal with a Dual SIM phone (like every bluetooth connected in-car system here in Europe I guess). It will always dial using the first SIM and won't ask for SIM. The first SIM is the only slot I have with 3G support so I have to have my private SIM in that (first) slot and my work SIM in the second slot.

I also asked Cubot the same question, they were going to look into it (for whatever that's worth) ;)
[Android General] Flow:
That was really a great tip! :)

I've seperated all my contacts with contact binding between both SIM's (private and work) and have set the default for Voice calls to my work SIM.

When calling a work contact it will immediately dial through work SIM, when calling a private contact it will first ask.

I know it's still not exactly as it should be, but at least it makes everything al lot easier :)
[Android General] BaSch83:
I am happy to help you.

Send from JY-G4 (Tt4 Beta)
[Android General] Salvolin:
I don't think it's an app. It's some sort of setting. The Allview P6 Stony, Fly IQ444 and NGM Legend XL all use the same hardware.

The Fly IQ444 can associate contacts with a SIM only after adding the following code to the build.prop

ro.gn.association.sim=yes
ro.gn.association.sim_switch=yes

The P6 Stony can't associate contacts with a SIM at all

(Well ok, if you add the code AND use the FLY IQ 444 settings.APK it works

Finally the NGM Legend XL has an extra option which you can enable (settings -> Sim management -> Default SIM) to direct call with the correct SIM without any popups.

So the same phone with three different versions... why o why can't I find the Legend XL ROM anywhere :crying:
[Android General] Flow:
These phones are based on the MediaTek MT6577 SoC right?

And most of them onlu run Android 4.0 ICS?

Maybe the versions of the MRE SDK used for these phones are older than on the newer MediaTek MT6589 / Android 4.2 phones?

---------- Post added at 09:43 PM ---------- Previous post was at 09:40 PM ----------

In my car using Bluetooth it still doesn't work like I would like it to work unfortunately.

When Voice call dialing has been set to a specific SIM instead of on Always ask, dialing a number will always go over that specific SIM, even when dialing a contact that's bound to the other SIM.

Fortunately most calls I make in the car are work related, so no real biggy. But too bad it's not quite optimal.
[Android General] Salvolin:
Exactly why I want this functionality too :good:
[Android General] kirkirehani93:
Can any one please provide a sime managrment app so that i can port it to my device ....plz

Sent from my Nexus S
[Android General] Salvolin:
It's not really a sim management app. I's more like integrated in the settings.apk, phone.apk and contacts.apk (for mediatek based devices) oh and a few lines in the build.prop
[Android General] nick_highj:
Freelander PX2 - SIM won't activate (no network)

Hi,

First, thanks for your explanation.

My tablet (Freelander PX2 with Android 4.2.1 with Kernel 3.4.5) sees my SIM card when I put it inside the slot (both of them, the one or the other).

It says "No SIM card inserted in slot 2" when I put a SIM in the first one.

But I can't make phone calls: there is no network signal and when I activate the SIM in Parameters>SIM management>SIM 1, and nothing happens when I click on "Unlock" when he ask for it.

As you say, the tablet is always in dual active mode (both sims work at the same time because there is two empty network signals in the notification bar).

Please, what should I do? I plan to use only one SIM (the 3G) for the moment.

Thanks,

Nick

----------------------------
[Android General] ctzulu:
when you have 2 sim cards in 1 phone and both have internet data flat

..is there a hack to activate both line for data - merge the speed

combine )? do you understand me :) i want double speed :silly:
[Android General] morrison100:
Hi, i do have a problem with my dual sim management in a Lenovo A800...

My SIM1 slot is the 3G card, while SIM2 slot is the phone/sms card...The problem is that whenever ia am uding actively the 3g, not in a standby mode, i am losing calls in the second sim...

Is there any way to change thiw?? for example to make the second SIM as the default one??
[Android General] Salvolin:
If contact association/ binding doens’t work the way you want it, check out the app “SIM Selector”. I must say it wasn’t first mentioned by me, but by Zimtsäure in this post here: http://xdaforums.com/showpost.php?p=44478879&postcount=83

On my Allview P6 Stony the app also seems to work fine with my carkit. Finally my car dials the number with the right SIM. (Still testing though, but first results look good)

[MENTION=5381893]nick_highj[/MENTION]: Seeing two network signals doesn’t mean the phone is dual active.

Dual active is being able to actually use both SIMS at the same time. Like having a call on hold on SIM1 and taking a call on SIM2. In dual passive phones you also see two network indicators, but once you use a SIM the other SIM will switch to voice mail or unreachable.

[MENTION=5402304]ctzulu[/MENTION]: This would only be possible on a dual active phone which supports two 3G connections. I think it’s a hardware thing not software. Having a faster provider would be an easier solution.

[MENTION=796066]morrison100[/MENTION]: Strange. Based on the dual active – passive thing I’d say if a call comes in you’d loose the 3g connection. Not the other way around. Like calls have higher priority than data. At least that’s how it works on my Allview P6 Stony. Although I never heard of it your device might have a setting to indicate priority between data or phone.
[Android General] morrison100:
I think I figured it out, there is a tick box under the "more" tab on wireless and networks menu, where I should have checked the GPRS transfer prefer mode to be Call prefer. If not checked, its getting greyish, and changes to data prefer.
[Android General] Krusade:
so is there no way that a dual standby phone can be used as a dual active phone? :( i know its a stupid post but i think that the difference shud be just software related and not hardware related
[Android General] Byte_Me:
I have a ZTE V965, which is also dual SIM. I have tried it with one SIM and with 2 SIMs. With both SIM cards it's possible to make calls, but I cannot receive calls on either SIM card, it immediately goes to voicemail. I am not even sure if this problem has to do with dual SIM, but I was hoping someone here might have an idea/suggestion. Both SIM cards work fine in other phones.
[Android General] rht_sg:
I have a Moto G, dual SIM.

I am only going to use the 1st SIM for the time being.

Is it possible to remove the status bar notification of the 2nd SIM card and signal strength ?

I did not see anything inside settings.

thanks
[Android General] Flow:
I have no idea, but Moto G isn't a Mediatek phone and thus doesn't have the Mediatek dual SIM SDK integrated in it's Android ROM.
[Android General] karnal.girish:
3g switching in dual SIM phones

Hey guys I am using Micromax ninja a89.. Had Been trying out new custom roms lately... In s3 custom Rom for ninja a89 I found that I could select the SIM to be 3g internally... Its a dual SIM phone and only one SIM slot has wcdma option... So if I wanted to use the 2nd SIM in 3g made then I would have to physicaly Change it... Please help and tells me how to change it internally like in the s3 custom Rom for a89
[Android General] Flow:
It's impossible to switch it based on software only.

1 SIM-tray is for 3G and 2G and the other SIM-tray is 2G only.

If you want two 3G SIM-trays you had to buy another type of phone.
[Android General] karnal.girish:
I also had thought the same way but in the custom rom there is an option and it works so its possible and i want to know how its done... i am not telling that it changes 2g to 3g but the swapting of sim takes place internally...

sent from ninja a89
[Android General] ROMENDRA RAYAT:
I am also facing same problem. My canvas 2 A110 is having both sim 3g, which cab be selected one by one through sim management, when it was on stock rom, whether it was stock ICS or Stock jelly bean. When I shifted to cusrom rom, some time it was first sim 3g enable and second sim as 2g. and some time it was both 3g, which can be interchanged through sim management as from stock rom, while both rom were ported through turbo rom.

Through this I come to conclusion that it is the problem of custom rom not kernel, as kernel was same in both custom rom. kernel only give command to hardware through the software. In custom rom we are having application which does not belongs to particular set. For example in S4 custom rom first sim is 3g anable while 2nd sim is gsm because S4 itself is single sim set and while porting its applications to custom rom due care is required, so that default properties are not changed. In those custom roms which are ported through dual sim both 3g, there is no such type of problem. same is true in case of external and internal memory card. in case of S4 custom rom it will take external card as internal card, by comparing the capacity of card and high capacity as internal. While other case it is not so. So always take care from where that rom is ported and type of application included. S4 custom rom will have properties near to S4 and same for others.
[Android General] Enrique XDA:
Hi,

Are you saying that one can convert the two SIM card slots of a dual SIM device to 3G even if it was designed to run with 3G in just one SIM and the other with 2G?

That would be great to achieve, but the software development might be tough!

Regards
[Android General] ROMENDRA RAYAT:
Yes it is always possible. Companies are restricting 2nd sim as GSM to prevent battery life as well as to have call on that sim when first one is on 3g.

choose a custom rom ported from a a device which was having both sim 3g alternatively through sim management. then falsh that rome to your set, by proper instructions. your problem will resolve. roms are already there. in some roms only one sim is made as default 3g n other as gsm and in some others both sim are 3g compatible.

when i am using S4 moded rom, only first sim of mine is 3g enabled while 2nd one is gsm, while when I am using other rom ported from micromax i am getting both sim 3g.

same is true for memory card. any sim ported from a device having no facility for external memory card, will consider your external sd card as internal card, by considering it high storage capacity.

so please take care while choosing a rom for your device.

my advice is

1- check from where a rom is ported. study all the feature of that set.

2- check if that rom is adopting features of some high end set, then rom will also have feature of high end set.

3.- think what facility you want from a ported rom. i.e. both sim 3g, external card as internal

4.- flash that rom after taking all precaution i.e. take back through recovery and backing up your recently updated software through titanium.
[Android General] shivrajsingh:
i have a problem. when i use 3g on sim 2, I have problem receiving calls from sim 1. I mean other people have problem calling my sim 1 no. Any solution?
[Android General] buythismobile:
3G on both SIM cards but not at the same time

Hello,

Now some phones allow to use 3G on both SIM cards but not at the same time, you have to select on which SIM card you want to use 3G.

Can you please tell me how to create a shortcut to SIM management option to be able to start the DATA connection on the SIM that I choose ?

(otherwise by default the first SIM DATA is activated)

Thank you.
[Android General] bdsr:
Try this

go to "/system" and open "build.prop" with text editor

found line "ro.nosignal.hideicons=no"

change it to "ro.nosignal.hideicons=yes" no quotes

if no card was inserted the icon disapear, or if you lose signal from network also disapear, for both sim slots
[Android General] Enrique XDA:
Hi,

This is a very risky for beginners like me... just one question, when you said that select a ROM of a dual SIM device that run 3G in both SIM cards you mean that I have to find a the stock ROM of models that have this characteristics and flash it into my device?

Thanks in advance for the explanation.

Regards
[Android General] sn!tch:
It's not possible what I asked

It's not possible what I asked
[Android General] SpineSurgery:
Hi everyone. I am new to dual-sim functionality (I will get my phone in few days) and I would like to read some guide regarding dual-sim on Android. Do you have any links to introduce myself to this topic?

Also, how to manage two WhatsApp and Viber accounts on the same phone :/ ?

Regards
[Android General] Lanreallenjay:
I av the same issue on my phone... Did you get any solution?

---------- Post added at 09:58 AM ---------- Previous post was at 09:54 AM ----------

I av the same issue on my phone... Did you get any solution
[Android General] startandroid:
i was searching for it.
[Android General] kelvinvalencio:
thanks :cowboy:
[Android General] prodev_1990:
Thanks

Thanks for the effort man
[Android General] georger010:
Hi there, thanks for this info. I currently have two sims,a 3 SIM and a Samba (internet only) sim that runs on the 3 network. My phone has the standard one sim slot GSM and other WCDMA.

I first tried my 3 SIM by itself in both the GSM and WCDMA slot and to my surprise it worked in both (in terms of 2G services). I thought that a 3 sim couldn't work in a GSM (2G) slot ? So I decided to leave the 3 sim in the GSM slot and then added the Samba sim into the WCDMA slot. However, when I turned the phone back on it connected to the Samba sim but the 3 sim said no network was available.

Any idea why this is ? Sorry if this has been asked before but I haven't been able to find an adequate explanation !
[Android General] Lanreallenjay:
I never knew this was possible. My mtk device doesn't support dual 3g but after I ported a26 rom to my phone, I realized I can use both sim for dual 3g. Awesome discovery this is
[Android General] srksaleem:
data connection on dual sim

Hi!

I'm using micromax a63 dual sim android phone in which I have to pull down notification bar to switch data connection sim which is annoying. so I need a desktop shortcut for that, there is data enabler available in play store but it supports only sim1 if I want to switch to sim2 I have to pull down notification bar. please help me!
[Android General] xdgauo:
Bluetooth call (dual sim)

There is an application with which you can assign a contact to the SIM cards, which can operate bluetooth call?
[Android General] Russell_S:
If the dual SIM phone that you want to control is a Mediatek based phone then I would suggest 'MTK Control' which is available from the Google Play Store. I have written a review of the software here:

http://xdaforums.com/android/general/review-mtk-control-dual-sim-management-t2875940

I use this on mu Jiayu G4 and it works great.
[Android General] kkrontir@yahoo.gr:
3G call problem

Hi! I have a problem with my dual sim MTK 6592 phone, running 4.4.2 Kit Kat. My phone has 1 sim 3G and 1 sim GSM. When i make or receive a call on my 3G sim from a 3G network, i can't hear anything! But the other person hears me just fine! Any ideas? Has anyone faced this problem before? I have tried switcing from 1 sim to the other, tried with only 1 sim, but no luck! GSM to GSM calls work perfect! 3G to GSM calls work perfect! Data work perfect! the problem is 3G to 3G calls! Anybody knows if this is Kit Kat related? Unfortunately the only rom available for my phone ( iNew V3 plus), is a Kit Kat rom! I can really use some advice! Thanks!!
[Android General] skpManiac:
Hi guys,

I have just bought a DUAL SIM LG G3 - great phone by the way :)

Have of you clever written or know of an app that allows me to swicth between SIMS at certain times and have both SIMS active (as default) too?

For example:

During the day I want SIM 1 & SIM 2 active (Business and personal) then at 6ppm I want SIM1 to switch OFF so only SIM2 is active, then customers get voice mail instantly and ts obvious I am closed for business :)

Thanks in advance
[Android General] Flow:
Not sure how LG implemented its Dual SIM, but it should be possible to disable at least one SIM within the Android Settings (normally under settings > MSIM settings or something of the like).
[Android General] skpManiac:
Hi mate, yes I can turn the SIM on & off with the software included, what I want is an APP that does it automatically, as I have turned it off at night and forgot to turn it back on in the morning :p

Off at 8pm on at 9am - something like that :@)
[Android General] Flow:
I'm afraid there's no app that does exactly what you need, otherwise you probably had find it already ;)

Maybe you could try the app Tasker to create an action like that.

I'm not sure if Tasker is compatible with dual SIM in this regard.

If that doesn't work, perhaps it can be triggered to run ADB commands or something like that?

Or maybe you need to install Tasker and the Tasker App Factory and create something yourself.
[Android General] skpManiac:
Thanks for the advice mate, I will look into it after work :)
[Android General] rbhanot2:
Is it possible to disable voice services(incoming as well) but keep the data service ON on the secondary sim ?
[Android General] napalmique:
Did anyone EVER with a dual sim powered by a Snapdragon 400 MSM8926 managed to turn 3G on for the second sim ? I managed to do it one time by mistake, a fortunate mistake that I cannot reproduce again.

I have a Gionee GN 715 based Allview phone, Viper S4G aka Viper S Pro.
[Android General] napalmique:
I guess not :(
[Android General] dudyno:
set up color for each sim

Hello

Is it possible to set up color for each sim like on mediatek dualsim devices (outgoing/incoming calls, signal strength icon)?

Oneplus 2 OxygenOS 2.2.0

Any app or alternative OS?

Thanx
[Android General] foroughi.hossein:
My phone is Huawei ascend p6 dual sim. I don't know how can I install the second sim card, there is just one slut for first sim. actually when I restart my phone, a message appears "sim card 2 not found", It means the phone can support 2 sim card, but I can not find how to insert the second one.
[Android General] jamil farsi:
hi

i havw huawei p10

when i travel can i have my country sim for calls only and the new sim for data andcalls

tks
[Android General] Salvolin:
Within the SIM settings you should be able to disable data for each separate SIM. So yeah, if I understand you correctly just disable data for your "country" sim.
[Galaxy S II Q&A, Help & Troubleshooting] gagan_ahuja11:
Please Reply
[Galaxy S II Q&A, Help & Troubleshooting] acekay:
There is no best ROM and asking this is against the forum rules.

There is CM10 and ROMs based on CM10. Flash and see which is best for your use.
[Galaxy S II Q&A, Help & Troubleshooting] postfatal:
lol... this whole question just lol.

< pls thank me op
[Galaxy S II Q&A, Help & Troubleshooting] king_below_my_lord:
CM10 is still in nightly builds so you won't get some of your components working and still will have lots of bugs, Stock jb is currently better... But still i wont tell you to use it, try stable roms like revolt which is based on CM10.

Try rephrasing your question like "which rom is advised or suggested CM10 or stock JB? "

Using GT - I9100

I thank those who give helpful comments
[Galaxy S II Q&A, Help & Troubleshooting] kilometers4:
That's the same thing. The whole point is to try them for yourself and decide.. Everyone has a different setup, so they will have different results
[Galaxy S II Q&A, Help & Troubleshooting] MistahBungle:
Symbian.