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[Q] Simultaneous Sim 1 (Call) and Sim 2(3G Data)

I'm currently using two 3G enabled Sims in my Galaxy Core GT-i8262.
My Sole purpose of getting the Sim 2 was to use 3G Data/Internet on it, while using Sim 1 for Calling and texting only.
I went for Galaxy Core only because i have to use Voice and Data on 2 different Sims separately.
Therefore , i inserted the Sim 2, Went into Sim Manager > Enabled both Sim > Dual Sim Active
I also enabled "Receive incoming calls via Other Sim card while using Data service" in Both Sim 1 & Sim 2.
But when i selected this setting i received a popup "This might slow down the data transmission"
>Also i have Set Data as "Sim 2" in Sim 1, (So only Sim 2 will ne used for Data)
And Sim 1 as GSM Only while Sim 2 as WCDMA Only
But still, when i'm on a call in Sim 1, i can't use the 3G service of Sim 2 simultaneously. Only after disconnecting the call, Sim 2 3G Data starts working,
So the whole purpose of using Dual Sim goes wast when we can't use 3G internet on one sim while on call in the other.
Can anyone suggest how to enable this feature and also to avoid the "The slow data transmission" due to Dual Active Sim.. Otherwise this phone is just a piece of trash as i'll be on call most of the time and i won't be able to check my mail or Whatsapp msgs.

Please.. Anyone reply..

Ask this to samsung CEO he cannot answer that:sly:
Sent from my GT-I8262 using XDA Premium 4 mobile app

While u r on a call on Sim 1 you cannot use the data connection from the Sim 2 even if its on WCDMA. But u can use 3G on the same sim on which the call is being recieved or done ...means Sim 1 can be used for both purpose simultaneously for Calling & Data connection on WCDMA ...even if u r on a call on sim 1 the data connection wont be lost...

hi! i'm not shure if i understand
i want to purchase this phone and i'm not shure if i can use in one sim voice over 3G and in the other one data over 3g.
I don't want to use voice and data in the same time...
Please help me

nobody can help me?

Hi Luciand, are you from Brazil?
My guess is that it is impossible to use voice on SIM 1 and data on SIM 2 because the smartphone have only one modem.
Even if it is capable of receiving calls on both SIM 1 or SIM 2, it is not possible to actively use the two SIMs at the same time.
For some smartphone to be capable of doing what you want, it should have two modems, which I believe would increase its cost and nobody would buy it...
I hope this helps, and if anyone knows better, please correct me!

luciand said:
hi! i'm not shure if i understand
i want to purchase this phone and i'm not shure if i can use in one sim voice over 3G and in the other one data over 3g.
I don't want to use voice and data in the same time...
Please help me
Click to expand...
Click to collapse
You are able to select which SIMs data service the phone uses in the sim card manager under Data service network. However, you cannot use voice and data at the same time, regardless of which sim is set to be used for voice or data (at least here in the US on EDGE network.)

[Q] Choosing 2g data on dual sim moto g

Hi, I have a dual sim Moto G. I have a 3g sim and a 2g sim card.
I wish to use the 2g card for data and calls but the 3g sim for calls only.
Now I put the 3g sim in slot 1 and the 2g sim in slot 2. Now when i choose data mode for the 2g sim it changes the data network type to 3g without me choosing that option. And it changes my 3g sim to 2g network only.
I'v tried all sorts of ways but it still changes the sim network type on its own.
Any ideas on what i'm doing wrong?
Many thanks in advance, Ben.
P.S. yes I did search the forums first but I couldn't find any details about this issue.

bentree said:
Hi, I have a dual sim Moto G. I have a 3g sim and a 2g sim card.
I wish to use the 2g card for data and calls but the 3g sim for calls only.
Now I put the 3g sim in slot 1 and the 2g sim in slot 2. Now when i choose data mode for the 2g sim it changes the data network type to 3g without me choosing that option. And it changes my 3g sim to 2g network only.
I'v tried all sorts of ways but it still changes the sim network type on its own.
Any ideas on what i'm doing wrong?
Many thanks in advance, Ben.
P.S. yes I did search the forums first but I couldn't find any details about this issue.
Click to expand...
Click to collapse
In a dual sim mobile phone 3g network can be operated from one sim only so what you can do is activate 3g on the 3g sim and disable internet on it and then the only choice for 2g sim would be to stay on 2g and then you enable internet on it.
If it doesn't work try changing slots.
If I helped please hit thanks!

Meuuks13 said:
In a dual sim mobile phone 3g network can be operated from one sim only so what you can do is activate 3g on the 3g sim and disable internet on it and then the only choice for 2g sim would be to stay on 2g and then you enable internet on it.
If it doesn't work try changing slots.
If I helped please hit thanks!
Click to expand...
Click to collapse
I have tried switching sim slots. What happens is when i select the enable data tick on the 2g sim the network type bar greys out and changes to 3g mode on its own. The only way i can change network mode is to de-select data mode and choose 2g again.
Cheers, Ben.

[Q] Provider Internet speed, 3G at 2G ?

Hi there :highfive:,
Have been somebody notice that the internet speed from SIM1(3G) it's pretty slow like a 2G(the other slot) ?
I changed the SIM slots, tried with one SIM at a time, then with two. The APN settings are fine .:good:
Maybe it's a production problem ? My first unit commed with low microphone volume problems, but i've got another phone (i verified the SN and IMEI )
It should apear a H+ in the status bar if 3G is active, true ? I have only a simple H

Please Help to force switch 3G network on SIM2 on Huawei G730-U00

I have a Huawei G730-U00 that support dual sim. But only Sim 1 supports 3G network. Is there any help to switch 3G network on Sim2 without power off and change Sim Card? I want to change 3G network on Sim2 if Sim 1 is deactivated while using 3G on Sim2. Please help. If it needs rooted devices, or any force enabler, it is OK. Thanks

I got it now, to change 3G network without power off and changing SIM cards.
Thanks, everybody

Honor 8 4g

Good evening I turn to you because I have a problem with my slot sim 2 I do not have a 4G. When I activate it I have no network. Roaming and any other settings sound activated. At least I hope so.
Although the phone tells me that the network is available, I can not call or receive calls (same for SMS). On the other hand, a priori, no problem to access the internet via 3G. When I try to call I have the following message: Mobile network not available

Help me

Have you tried any other SIM?

You need to go into your mobile network setting and Dual Sim setting to make sure Sim 2 is active.
Now if you want Sim 2 to use 4G you will have to select this in the Dual Sim setting. By default Sim 1 is the default mobile settings.
At any one time 2 sim are in the device only one will use 4G or 3G the other will use 2G.

here are the tests I made with reboot
https://i.imgur.com/VKXibvQ.png
https://i.imgur.com/XGZ1yXi.png
https://i.imgur.com/iLkoRm5.png

Pleaze help

Help help