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[Q] Can't get 3G only E

Hello all.
I bought a Galaxy Core from the Middle East(2 Sim cards) and tried to use it in America through Strait Talk. The phone is working fine and the only problem I have that I can not get 3G just E (EDGE) which is so slow. I put my Sim Card in a Galaxy S III to make sure that the Carrier provides 3G. As soon as I put the Sim Card in Galaxy S III, I immediately got H +. But when I put it back in my Galaxy Core I got E.
My area covers 3G
APN setting is according to Straight Talk instructions
Any idea why ?
I would highly appreciate your answer and help!!

Check network mode - maybe it is set to use only 2G. You can find it under Settings -> More settings -> Mobile Data

rzepa90 said:
Check network mode - maybe it is set to use only 2G. You can find it under Settings -> More settings -> Mobile Data
Click to expand...
Click to collapse
Mode is already set to GSM/WCDMA (Auto Mode). I can use this option and GSM Only option. I can not use WCDMA Only option. If I chose WCDMA Only, I will loose the the whole mobile service. Thanks a lot for your help and time.

Ahmed_s said:
Mode is already set to GSM/WCDMA (Auto Mode). I can use this option and GSM Only option. I can not use WCDMA Only option. If I chose WCDMA Only, I will loose the the whole mobile service. Thanks a lot for your help and time.
Click to expand...
Click to collapse
Look You can't use 3G on both SIM at the same time. So choose WCDMA only on the SIM you want to use 3G and use WCDMA/GSM on other SIM and this might not be allowing you to choose "WCDMA only" so better check 2nd SIM connection type.
and yup it is common that network disconnects while change the mode of connection. It will be stable after your option is set.
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PRESS THANKS IF I HELPED!

M_E_G_A_T_R_O_N said:
Look You can't use 3G on both SIM at the same time. So choose WCDMA only on the SIM you want to use 3G and use WCDMA/GSM on other SIM and this might not be allowing you to choose "WCDMA only" so better check 2nd SIM connection type.
and yup it is common that network disconnects while change the mode of connection. It will be stable after your option is set.
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PRESS THANKS IF I HELPED!
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In fact I am using only one Sim Card. I chose WCDMA Only and restarted the phone. I lost the service again. Thank you Bro.

I too have an issue with my Samsung Galaxy Core prime sm-g360t, my 3g is not working n I've tried LTE/Wcdma/gsm, buh it's still not working

actually ..our galaxy core now became as trash ...even i faced the same problem but there was no fix except an workaround ...the thing is lots of companies has put many features in their "new" SIMs and galaxy core is unable to process those(hardware problem) but if you use an old sim like 2-3 yrs old it will work for you ...after many many googling i had nothing in my hands but solved it by using my old sim ....just take someone's which is old and see if it helps ....
----by an same problem facer

[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.

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

Huawei Mate 9 only 2G possible?

Got the L29, so dual sim.
My first sim is for calling and sms, so I only need 2G but I can not set it to only 2G. Just the sim for mobile network (it's sim 2) can set to 2G, 2G/3G, 2G/3G/4G and only 4G.
The problem is 3G is really bad for sim 1 and this drain my battery for nothing, cuz I only need 2G for calling/sms.
I got a lot dual sim devices and this one is just strange in some things.
Regards

This is a problem for me, too

Dosen't work, I call already Huwei and they can not help me. Really bad :/

theres a setting in sim card management under mobile networks. it lets you pick which one gets data.

I can easily set 2G only for sim1 here, dont know what you did? Or your carrier doesnt support this, I mean if there is no 2G in your country, why could you change it to 2G?

Same problem on my mate 9 and my axon 7, seems to be an androidwide problem.

NikiFue said:
Same problem on my mate 9 and my axon 7, seems to be an androidwide problem.
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Click to collapse
Naw, it works perfect with OnePlus 3, 3T, Mi5, Mi5s, Mi5s Plus and all other phones. Set Sim 2 to 2G/3G/4G and Sim 1 only on 2G. Here you can set Internet and this is it, the other sim go 2G/3G.
Gesendet von meinem MI MAX mit Tapatalk

In "settings/more/mobile networks" I can set the preferred network mode for each sim card. Had this when I used it as dual SIM for my work: sim 1 data mode on 2g, sim 2 on 4g. Works perfectly, even on 2 completely different providers.

djmvt said:
I can set the preferred network mode for each sim card. .
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Click to collapse
I don't believe. When mobile data is default set to sim 1, just to sim 1 can be selected preffered network mode.
In my case: sim 2 -default mobile data- can be set to 2g only/auto 2g3g...evrything. Sim 1 switched automatically to 2g/3g/lte auto-can not be set preffered network mode.
If i switch default mobile data to sim 1, preffered network mode can be modified in sim 1, but not for sim 2, and sim 2 switched auto to 2g/3g/lte auto.
I want like this:
1. sim1 default data-3g/4g/lte
2. sim 2---2g only. But this is not possible because just in this case, sim 2 jump into 2g/3g auto.

djmvt said:
In "settings/more/mobile networks" I can set the preferred network mode for each sim card. Had this when I used it as dual SIM for my work: sim 1 data mode on 2g, sim 2 on 4g. Works perfectly, even on 2 completely different providers.
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Click to collapse
Nope... Just the sim which is for mobile network. If I change sim 1 to mobile network, I can set to only 2G but the other one will be 2G/3G

Storm198025 said:
I don't believe. When mobile data is default set to sim 1, just to sim 1 can be selected preffered network mode.
In my case: sim 2 -default mobile data- can be set to 2g only/auto 2g3g...evrything. Sim 1 switched automatically to 2g/3g/lte auto-can not be set preffered network mode.
If i switch default mobile data to sim 1, preffered network mode can be modified in sim 1, but not for sim 2, and sim 2 switched auto to 2g/3g/lte auto.
I want like this:
1. sim1 default data-3g/4g/lte
2. sim 2---2g only. But this is not possible because just in this case, sim 2 jump into 2g/3g auto.
Click to expand...
Click to collapse
Ah I see what you mean! Have been playing with 3 different dual SIM phones last year so got it mixed up. What I did with my Huawei mate 9 when I used dual SIM was: sim 1 set to auto 4g 3g 2g and on sim 2 I overruled the automatic provider search and just picked the 2g network from my provider. It then still mentioned 2g 3g in dual SIM settings but it didn't connect to 3g because I selected a 2g only network.
Is this how you want it?

on my ZTE it's really funny. the setting is available but disabled lol

Fixed By using Tasker [No Root]
I got this issue fixed by using Tasker so probably there might be an ADB command to set the network mode
My fix:
Make a new task -> Press + button -> Mobile Network Type -> Choose required network mode
Note: Will need to enable USB debugging and use the command `adb tcpip 5555` for getting the permissions. Also this might need to be done after ever phone reboot

Individual sim preferred network type selection

Hello!
I just bought my OnePlus 6 2 days ago. I've switched from a Xiaomi phone. One problem I am facing with this phone is I cannot individually select the preferred network type or each of my sims.
My Sim-1 (the data sim) is running on 4G-LTE network and Sim-2 is running on 3G-UMTS. I'd like my Sim-2 to run on 2G-GSM ONLY network as it saves battery and GSM signal strength for this particular sim is better in my area. However, neither the Sim & network menu, nor the *#*#4636#*#* code menu lets me select the preferred network type for Sim-2.
The code menu on my Xiaomi allowed me to set them individually. Is there any way the same can be done on OnePlus 6?
Thanks in advance.

Just switch "Mobile data" to SIM-2 and change the preferred network type to 2G and then change "Mobile data" back to SIM-1, this will keep SIM2 in 2G mode

anirudhnyg said:
Just switch "Mobile data" to SIM-2 and change the preferred network type to 2G and then change "Mobile data" back to SIM-1, this will keep SIM2 in 2G mode
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Click to collapse
Thank you very much! Seems to be working

anirudhnyg said:
Just switch "Mobile data" to SIM-2 and change the preferred network type to 2G and then change "Mobile data" back to SIM-1, this will keep SIM2 in 2G mode
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Click to collapse
I saw this last week, changed it on my phone as well, and it worked great!
However, after updating to 5.1.6, I noticed it changed them back. And dual 4g option was disabled by default.
When I keep sim1 on 4g/3g/2g, I switch to sim2, change it to 2g only. Then switch back to sim1 it changed to 3g/2g. I leave it like that, and switch back to sim2, and it also is set to 3g/2g. I have the dual 4g option disabled.
When I enabled the Dual 4G option, I was able to make sim1 4g/3g/2g preferred, change sim2 to 2g. Switch back to sim1 and it stayed with the 4g, switched to sim2 and it was still on 2g.

surface13 said:
I saw this last week, changed it on my phone as well, and it worked great!
However, after updating to 5.1.6, I noticed it changed them back. And dual 4g option was disabled by default.
When I keep sim1 on 4g/3g/2g, I switch to sim2, change it to 2g only. Then switch back to sim1 it changed to 3g/2g. I leave it like that, and switch back to sim2, and it also is set to 3g/2g. I have the dual 4g option disabled.
When I enabled the Dual 4G option, I was able to make sim1 4g/3g/2g preferred, change sim2 to 2g. Switch back to sim1 and it stayed with the 4g, switched to sim2 and it was still on 2g.
Click to expand...
Click to collapse
Thank you so much!
I was almost losing my mind again after the 5.1.6 update as battery consumption had increased because settings got changed automatically. On top of that, the prior method wasn't working. But the method you mentioned for 5.1.6 is working fine now. You just saved my night's sleep!
Thanks again

5.1.9 seems to have broken this. Whatever I have sim1 on, sim2 follows. Anytime find a work around to have 1 sim with 4g/3g/2g and the other 2g only?

How can I do that in OnePlus 5?

Back to the same problem in 5.1.11

UPDATE: I think I've found a workaround. Manually select network operator for the second sim and select the 2G version of the network. Seems to be working for me. Try it and let me know if it works for you.
UPDATE 2: Nevermind. It reverted back to whatever setting I had for sim 1. This is so annoying!
surface13 said:
5.1.9 seems to have broken this. Whatever I have sim1 on, sim2 follows. Anytime find a work around to have 1 sim with 4g/3g/2g and the other 2g only?
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Click to collapse
dark_polok said:
Back to the same problem in 5.1.11
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Click to collapse

dark_polok said:
UPDATE: I think I've found a workaround. Manually select network operator for the second sim and select the 2G version of the network. Seems to be working for me. Try it and let me know if it works for you.
UPDATE 2: Nevermind. It reverted back to whatever setting I had for sim 1. This is so annoying!
Click to expand...
Click to collapse
Seems to be working for me in 5.1.11
Works whether or not I have dual 4g enabled

Thanks it works...