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[Q] can't switch between 2G and 3G

guys I can't switch between 2G and 3G freely. I checked the "Use only 2G networks" and it didn't work, nothing happened. and the moment I exit settings and go back to that option, it became unchecked.
anyone knows what's the problem?

Can you give more info?
Are you stock/rooted/what rom/kernel/radio blah blah blah...

rooted 2.3.3, it's a nandroid backup. after which I have netarchy 1.2.5 cfs on it, radio XXKB1

anyone pls? urgent

It happens to me too I have the same kernel but running cyanogen and I switch to 2g but wont go back to 3g
Sent from my Nexus S using XDA App

JJJ010101 said:
guys I can't switch between 2G and 3G freely. I checked the "Use only 2G networks" and it didn't work, nothing happened. and the moment I exit settings and go back to that option, it became unchecked.
anyone knows what's the problem?
Click to expand...
Click to collapse
Yeap i've made the same question but no one answered...it seems that there is no option to choose between 2g and 3g.....only to choose use only 2g

I have a solution to the problem.
Go to Home-->Press menu button-->Add-->Widgets-->Power Control-->Check the button "2G/3G"(You may uncheck all other buttons,up to you)-->
Scroll down till you see "Choose Network Modes"-->Click the button right below it--> Click on "2G/3G Only/3G+2G"-->Move to top and click OK.
A new widget will now appear on the home. Here you can switch your network modes between 2G or 3G or 2G/3G.

[Q] Sorry to ask but Radio help please

I've searched and can't find a thread with stuff helpful to me. I would like a radio that will allow me to use 2G network. I live in rural Alaska and we have some crappy networks. I know it would probably work with factory settings, but I'd like to keep my phones custom rom Honeysense 6.2.2. I have been trying to make it work on the apn settings given to me by my provider but haven't succeeded. If someone out there has a solution please help.

72aiden said:
I've searched and can't find a thread with stuff helpful to me. I would like a radio that will allow me to use 2G network. I live in rural Alaska and we have some crappy networks. I know it would probably work with factory settings, but I'd like to keep my phones custom rom Honeysense 6.2.2. I have been trying to make it work on the apn settings given to me by my provider but haven't succeeded. If someone out there has a solution please help.
Click to expand...
Click to collapse
You can use an app from the market to do it once you are rooted

72aiden said:
I've searched and can't find a thread with stuff helpful to me. I would like a radio that will allow me to use 2G network. I live in rural Alaska and we have some crappy networks. I know it would probably work with factory settings, but I'd like to keep my phones custom rom Honeysense 6.2.2. I have been trying to make it work on the apn settings given to me by my provider but haven't succeeded. If someone out there has a solution please help.
Click to expand...
Click to collapse
Use Network. Towards the bottom, change the option to GSM Only.

1. "Sorry to ask but Radio help please" <-- Don't be sorry to ask. No one is going to flame u if ur efforts were genuine in searching first.
2. For ur question:
a. [User input] Go to wireless settings, and select 2G network
[System Action] This will turn off data, and re-enable it, but high chances (for me, its "always") still be on 3G/H
b. [User input] Go to network selection mode, and select manual
[System Action]This will present u with a list of networks to select (only one if u r on AT&T)
c. [User input] Select the network (AT&T if u r on AT&T)
This should now put the phone on 2G/EDGE network.
Warning: Since u r forcing this, there could be some patches (like when on certain areas when on road, etc) where u cud face loss of signal.

Simba501 said:
Use Network. Towards the bottom, change the option to GSM Only.
Click to expand...
Click to collapse
Using this app (this app is just a shortcut to the options in *#*#4636#*#*) many a times caused me a Phone process FC in an infinite loop (most recent one was y'day). The FC loop sometimes wasn't instantaneous, and started after ending a call and when the phone tried to get back to EDGE network.
Only way out was restoring from my previous nandroid backup. So I would be cautions.

[FIXED] - [Q] [JellyBean] How to switch on 4G?

I recently installed the JellyBean ROM for my A2 and changed few settings in the power manager after which I am unable to get 4G connectivity. I always see Edge in the status bar. I've tried re-trace my steps in the power manager but havent been able to turn on 4G yet.
Any guidance on how I could get my 4G back ?
----- UPDATE ----
I had to flash the same ROM again onto my phone and now its functioning properly. Still don't know the root cause but will report again if I see it happen again.
Thanks
Dhanvi

kapiladhanvi said:
I recently installed the JellyBean ROM for my A2 and changed few settings in the power manager after which I am unable to get 4G connectivity. I always see Edge in the status bar. I've tried re-trace my steps in the power manager but havent been able to turn on 4G yet.
Any guidance on how I could get my 4G back ?
Thanks
Dhanvi
Click to expand...
Click to collapse
Which JellyBean ROM? Please remember to be very specific as to the conditions surrounding the problem you're having!
I'd first try to go into Settings/ Below Data Usage tap 'More...'/ Mobile Networks
and make sure that 'Use only 2G networks' isn't checked.
Also, which carrier are you on? (I know most are on AT&T, but I'm on Straight Talk so I ask)

Alperon said:
Which JellyBean ROM? Please remember to be very specific as to the conditions surrounding the problem you're having!
I'd first try to go into Settings/ Below Data Usage tap 'More...'/ Mobile Networks
and make sure that 'Use only 2G networks' isn't checked.
Also, which carrier are you on? (I know most are on AT&T, but I'm on Straight Talk so I ask)
Click to expand...
Click to collapse
Thanks for your reply. I'm on the "MagicMod-Jellybean-Experimental" Atrix ROM on ATT.
The "Always use 2G" is unchecked which means that it should use 4G when available. Which bought me to the next section where I could search for network providers. When I searched for networks, most of the times my phone fails to find ATT in the list of available networks. I do have 4 bars on my phone though. I dont see the network provider name in the status bar so I dont know where it is connected currently.
My current hypothesis is that my phone is unable to connect/register to the ATT network and so I dont get 4G speeds.
Does that make sense?
Dhanvi

kapiladhanvi said:
Thanks for your reply. I'm on the "MagicMod-Jellybean-Experimental" Atrix ROM on ATT.
The "Always use 2G" is unchecked which means that it should use 4G when available. Which bought me to the next section where I could search for network providers. When I searched for networks, most of the times my phone fails to find ATT in the list of available networks. I do have 4 bars on my phone though. I dont see the network provider name in the status bar so I dont know where it is connected currently.
My current hypothesis is that my phone is unable to connect/register to the ATT network and so I dont get 4G speeds.
Does that make sense?
Dhanvi
Click to expand...
Click to collapse
Just so you know A small H by your signal bar means 4g. I am on AT&T and all I have to do is uncheck those boxes and reboot and data and MMS works fine
From my locked down superchargedV6 1.425ghz A "What tha duce?"

daavvis said:
Just so you know A small H by your signal bar means 4g. I am on AT&T and all I have to do is uncheck those boxes and reboot and data and MMS works fine
From my locked down superchargedV6 1.425ghz A "What tha duce?"
Click to expand...
Click to collapse
Yep. I'm aware that a H is 4G. I see an 'E' next to the signal bar. I did have an 'H' right after I installed my ROM but since today I'm only seeing 'E' .
I'll try flashing the CM10 ROM and check if that fixes my issue. If not, I'll copy over an apns-config.xml from an ICS install and replace my current one with that just in case.

try changing network mode by an awesome app called "Network" by phillip
in market .... it is simple & best option

shardul.phatak said:
try changing network mode by an awesome app called "Network" by phillip
in market .... it is simple & best option
Click to expand...
Click to collapse
Thanks for the tip. I'll try that. Looks like a reflash (of the same ROM) solved the problem for me though. Its back to 'H' for me. I still haven't tried to flash CM10.
Thanks for your help guys.

[Q] Network preferred type

Hello,
I have a Moto G with Android 4.3 and i want to change the network type preferred, but i didnt found this option, i always used the command *#*#4636#*#* and change to "WCDMA Only" in my old phone (Samsung galaxy y duos, Android 2.3.6).
My data acess always oscillates between 2g and 3g, there is other way to force connection only at 3g ?
Thank you guys

I also wanna know that
Sent from my Moto G using Tapatalk

"WCDMA Only" should force it to be 3g only. That's on every phone I've had, and it works.
Sent from my Nexus 4 using Tapatalk

pnut22r said:
"WCDMA Only" should force it to be 3g only. That's on every phone I've had, and it works.
Sent from my Nexus 4 using Tapatalk
Click to expand...
Click to collapse
Ok but what we are trying to figure out it's where we can find this option
Sent from my Moto G using Tapatalk

Try this https://play.google.com/store/apps/details?id=de.mangelow.network
Sent from my Nexus 4 using Tapatalk

pnut22r said:
Try this https://play.google.com/store/apps/details?id=de.mangelow.network
Sent from my Nexus 4 using Tapatalk
Click to expand...
Click to collapse
I tried. I downloaded but I don't know where to go in this app. I can't find the options or the menu to change to wcdma only. Can you please do a dummy tutorial for me?
Seriously I've stared this app for hours and still no clue
Sent from my Moto G using Tapatalk

Oh, when you open the app, it's supposed to take you to the menu that you were taking about.
Look and I'm the general or q&a thread, there is another topic about this. Some people are saying theirs are locked from this menu unless they do something else. If I find a link, I'll send it over
Sent from my Nexus 4 using Tapatalk

pnut22r said:
Oh, when you open the app, it's supposed to take you to the menu that you were taking about.
Look and I'm the general or q&a thread, there is another topic about this. Some people are saying theirs are locked from this menu unless they do something else. If I find a link, I'll send it over
Sent from my Nexus 4 using Tapatalk
Click to expand...
Click to collapse
Thanks. I'll appreciate it
Sent from my Moto G using Tapatalk

Allewar said:
I tried. I downloaded but I don't know where to go in this app. I can't find the options or the menu to change to wcdma only. Can you please do a dummy tutorial for me?
Seriously I've stared this app for hours and still no clue
Sent from my Moto G using Tapatalk
Click to expand...
Click to collapse
Seriously!?
Have you tried to see each option of the app?
I'm gonna try to help you: open the app, there's a menu. The first option should be "Phone Information", tap that.
So you have a lot of information about the radio, your chip, phone number, your provider, cellphone network and more...
Look for the option like "Set prefered network type" (or something like that. I'm trying to imagine how it's written in English, once here I use it in portuguese).
That option is a combobox with a lot of other options to choose. Always use:
"GSM only" (forces to use 2G, saves battery, you can also use that from Android Config Menu)
"WCDMA only" (forces to use 3G, speed up connection, but drains battery)
And "WCDMA prefered" (the phone always try to connect to 3G, but when it's not possible, it gets 2G).
The default option should be "GSM auto (PRL)". Similar to WCDMA prefered, but read this the see difference:
http://forum.xda-developers.com/showpost.php?p=6591742&postcount=2
Be very careful with the other options. CDMA is very different from WCDMA.
CDMA is a different 2G modulation and it's not compatible with GSM neither Moto G.
EvDO is used only in some countries and providers, google to learn about it.
And LTE is 4G connection. I don't know if Moto G radio support that.
Remember: try it in you own risk! I'm not responsable for any connection problems you get. And try not to change nor tap any other option in that menu.
I'm using this app here with any trouble.

Ok, I see this menu, I select my network preferred type but nothing happens...
Am I supposed to do something after select the network type I want?
I mean, the Phone is still changing to 2g...
I'm so frustrated with not being able to force wcdma =/

Problem solved.
Download and install Phone testing from play store.
Thank you guys =]

oogait said:
Problem solved.
Download and install Phone testing from play store.
Thank you guys =]
Click to expand...
Click to collapse
How is that I am the only one unable to make it work. I must be very dumb ....
Sent from my Moto G using Tapatalk

Allewar said:
How is that I am the only one unable to make it work. I must be very dumb ....
Sent from my Moto G using Tapatalk
Click to expand...
Click to collapse
I am on the same boat. The change I made in (*#*#4636#*#*) - WCDMA prefered - won't save. After each reboot/restart it goes back to GSM PRL.
My G isn't rooted or modified in any way, out of box state with few 3rd party apps.
Maybe is related to APN?

Network mode
HI Friends,
I like to use network preferred mode AUTO (3g/2g),
but from mobile network -> network mode there are only
two option that we can select either "2G" or "3G".
Some days back at first time when I opend this menu
neither of "2G" or "3G" was selected so It was working fine
with by defualt in auto mode.
But once I have selected this option now It is not possible to unselect both
2G as well as 3G and put phone back to auto network select mode.
Can anybody has work around for this.
I tried "Network" app as suggested but not useful for me.

hardikparty said:
HI Friends,
I like to use network preferred mode AUTO (3g/2g),
but from mobile network -> network mode there are only
two option that we can select either "2G" or "3G".
Some days back at first time when I opend this menu
neither of "2G" or "3G" was selected so It was working fine
with by defualt in auto mode.
But once I have selected this option now It is not possible to unselect both
2G as well as 3G and put phone back to auto network select mode.
Can anybody has work around for this.
I tried "Network" app as suggested but not useful for me.
Click to expand...
Click to collapse
Download phone testing by diewlandon playstore open app then go phone setting

hardikparty said:
HI Friends,
I like to use network preferred mode AUTO (3g/2g),
but from mobile network -> network mode there are only
two option that we can select either "2G" or "3G".
Some days back at first time when I opend this menu
neither of "2G" or "3G" was selected so It was working fine
with by defualt in auto mode.
But once I have selected this option now It is not possible to unselect both
2G as well as 3G and put phone back to auto network select mode.
Can anybody has work around for this.
I tried "Network" app as suggested but not useful for me.
Click to expand...
Click to collapse
In Settings > Apps you can reset app preferences which deselects 2g and 3g, but not sure it makes any difference. You lose any preferences you set for apps...

Thank You
serophia said:
Download phone testing by diewlandon playstore open app then go phone setting
Click to expand...
Click to collapse
Thank you very much !!! It is working with me !!!!

[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.
----------------------------------------------------------------------------------------
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.
----------------------------------------------------------------------------------------
PRESS THANKS IF I HELPED!
Click to expand...
Click to collapse
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