Database Info

Disable 3G/ Use EDGE Only

For all the people that need their battery for a day or more I wanted to add the instructions on how to disable 3G.
Go into the dialer and type in *#*#197328640#*#*
Select "Debug Screen" on the menu
then hit "Phone Control"
then "UE State Control"
"Change RAT to GSM" will turn off 3G access and will leave your DATA on 2G.
This will save lots of battery especially for those who have low 3G signals.
Please note that rebooting the phone or even turning on "Airplane mode" will reverse these changes.
This means you will have to change the settings again (this is also the fastest way to cancel the changes and go back to 3G).

Thanks a ton for this. I'm sure it was in another thread, but I always saw mixed reports and hadn't tried it myself.
I have a 3-4 bar EDGE signal in my office, but only a 0-3 3G signal, so this will be a lifesaver.
However, as soon as there's a ROM that adds the force 2G option that should be there back into settings (and removes any other locks AT&T put in the software), I'll probably go that direction just because it is a pretty clunky way to do something that should be an option as is.

I have something to add to this. If you use a reboot or airplane mode to turn 3G back on, the next time you go to turn 3G off, you may need to re-enable 3G (WCDMA) before changing back to GSM. Apparently, the setting didn't get changed in the debug menu even though I got switched to 3G, so I had to put it back on 3G first.

Is this still the only way to disable 3G but leave 2G enabled on the Captivate? The apps in the Market are still all or nothing (3G or no data connection at all).
Thanks!

3G, 2G disabling?
Is there a way to disable the 3G/2G altogether but still use wireless?

You can always put it in airplane mode and then turn WiFi on if you don't want to use the AT&T network at all.

How-To Disable 3G and keep Edge running

So I've noticed a lot of users wondering how to disable 3G and keep running Edge on their Captivate without killing their data connection. I found out how to do this from another forum and thought I'd share Hopefully AT&T will read their forums and listen to people and create a toggle to do this.
- Type in *#*#197328640#*#* in your phone to get to the "ServiceMode"
- Choose [1]Debug Menu
- Choose [8]PHONE CONTROL
- Choose [4]UE STATE CONTROL
You now have 2 options: CHANGE RAT TO WCDMA or CHANGE RAT TO GSM
If you want just an edge connection (here at work 3G and Edge keep battling to win so I love disabling 3G) then choose the GSM option. To get back to 3G just go back into ServiceMode and go to WCDMA.
Hopefully a dev or someone can make a toggle or widget

An app or a widget would be great to turn off 3G. Is there a way to get tasker to go through these steps?

You can use AnyCut to create a shorcut to the ServiceMode and it makes things much easier.
Since I don't know how to program for Android I wish I could help making a widget but I wouldn't know where to start Until we get a skilled dev to make a widget/toggle either the AnyCut link or manual entering of the code will have to do...
But at least now we know WHERE to disable 3G all other "fixes" haven't worked.

I noticed that once you change it to one of these modes there is no way to get it back to the default "DUAL" mode it begins with if you go to "Current Connection State" menu. Does this force WCDMA or GSM with no way to get it back to auto?

bigdoug2005 said:
I noticed that once you change it to one of these modes there is no way to get it back to the default "DUAL" mode it begins with if you go to "Current Connection State" menu. Does this force WCDMA or GSM with no way to get it back to auto?
Click to expand...
Click to collapse
If you turn off your phone and turn it back on, it goes back to DUAL.

There is an app in the market that will bring up the service menu on Samsung phones.

Try this app to get into the service menu

LinuxNewb said:
You can use AnyCut to create a shorcut to the ServiceMode and it makes things much easier.
Click to expand...
Click to collapse
You were able to use anycut to bring up the Service Mode? When I tap the resulting shortcut I get a crash every time...
This is on an i897 Captivate on JH2...

I was thinking of the PhoneInfo where the other tricks had you change a setting to GSM auto. I couldn't get AnyCut working either.
So as far as the dual mode, when you go to WCDMA it will go back to 3G but can still go into Edge mode if you lose 3G.
Think of it as Wireless G band also B compatible in a wireless router
Sent from my SAMSUNG-SGH-I897 using XDA App

Here's an app that will launch some of the codes..check it out..its free but as always support the developers
http://forum.xda-developers.com/showthread.php?t=748859&highlight=sgs+info

[Q] Need Help regarding Network Mode Issues on LG G3 AT&T

Dear All,
I am having issue of Network selection on my LG G3 D850.
1st of All sorry for my English.
Intro of Phone
Phone is rooted and Lollipop stock rom installed.
My Network is Zong (Pakistan) Frequencies are following
3G = 2100
4G = 1800
Issues
At start Network mode setting was not available under mobile network but now after changing ro.build.target_operator ATT to OPEN i got these setting in Network menu but now.
1. 3G not working in this cell phone my network frequency is 2100 and this cell phone also support this but why this is not working,
I have tried to check and change WCDMA mode it is showing 850 as selected but when i try to select the 2100 message show Fail.
2. Not switch automatically to LTE/4G (but some time after restart), when i select LTE/4G by selecting Manually LTE/4G network from manual searched Network list or after restart, Cell Phone unable to receive any phone call, caller receive message like cell phone switched or unable to reach or out of coverage etc,
3. when i dial *#*#4636#*#* after opening the Menu and selecting the Phone Information this application show message "this application dose not work on this device" and it close this menu.
No issue on 2G.
I also have tried Intelli3G but it was not working on KK or i dont know how to use it now i have LP I am not able to install Xposed i have installed the different version but not working i also flash a zip file which was working on Xperia Z1 but my Cell phone Rom got issues (All time message show LGSmartwatch (or something like that) stop working), so i again install LP on device.
I am New user of LG G3. please guide me

@wajeeh.ihi dial 3845#*855# on ur phone then select lte only then select modem settings then RAT SELECTION Then choose the 1st option which has lte auto in the end. Ull have to do this everytime u restart your phone to use 4g lte.

Hello wajeeh. need your help in editing that buildprop file. I managed to do it on stock lollipop rom but now i forgot.. Can you please help me out .
Thank you

[Q] 4g disappeard

yesterday i flashed 23.0.A.2.93, to root and get recovery. when the flash was finished and it reboot, my 4g was gone, and i only got edge. i live in the woods, but i had 4g before. when i went to town, the E changed to H, but still slow, and no 4g. now i've flashed back to 23.1.A.1.28 (modded CE1) and still no 4g. why is this, and what can i do to fix this? i have the right APN

Did you check to make sure 4G is enabled? You can press the 4G switch from the quick settings menu or go into the settings app and then under Wireless and Networks ...More >Mobile Networks > Preferred Network type. Perhaps you have WCDMA (preferred/GSM selected, in which case you won't see the 4G icon come up even if you're in a 4G area. Switch to 4G (preferred/WCDMA/GSM and after a few minutes, your phone should switch to 4G. If it doesn't then tap on Network Operators and see if your network has a 4G signal in your area. You'll see an entry for each available 2G, 3G and 4G signal.
You can also change the preferred network type from the service menu. Dial *#*#SERVICE#*#* and then tap on Network Mode.
Hope that helps.
SF

it was on "WCDMA (preferred)/GSM", changed to "LTE (preferred)/WCDMA/GSM", now i have LTE, but thats not the same as 4g right? *#*#SERVICE#*#* > service settings the "Network Mode" option is grey and it says "N/A"

Suddenly, it started with 4g again, thanks

Switch network mode on AT&T LG V10...

Is there a way to switch the network mode (2G/3G/4G/LTE) on the AT&T LG V10? I can't seem to find the setting or a code to enter in to get to the menu.
Thanks!

xydrine said:
Is there a way to switch the network mode (2G/3G/4G/LTE) on the AT&T LG V10? I can't seem to find the setting or a code to enter in to get to the menu.
Thanks!
Click to expand...
Click to collapse
277634#*# RAT-SELECTION I don't know another way.
Sent from my LG-H901 using Tapatalk

I have a LG V10. Though I am on T-Mobile network provider.
If I want to change frequencies (which is what I think you are asking). You need to select the "Preferred Network Mode".
You do this by going to your "settings" > then click the "more" then click "Mobile Networks" then click "Network Mode" then select the the frequency the radio will operate on. Your choices are;
GSM/WCDMA/LTE auto
GSM/WCDMA auto
WCDMA only
GSM only
Hope that helps.
MaxMcByte...

Att lg v10 doesn't have this option

oscar786 said:
Att lg v10 doesn't have this option
Click to expand...
Click to collapse
Hello my friend i had the same problem, but now am good just go to playstore and search for V10 hidden setting, you will see an app called lg v10 hidden setting no root just download it and open it you'll find a bunch of settings choose mobile network it will create a widget on your homescreen. And you good to go or click this link :
https://play.google.com/store/apps/details?id=you.love.v10.hidden.settings

Try *#*#4636#*#*
Sent from my SAMSUNG-SM-N910A using XDA-Developers mobile app

So, what i have to do?? i was working on 4G and when i installed a battery saving app. it convert mobile to 2G for saving battery and then un-installed the App, but cant revert mobile back to 4G.