Access Code from old Samsung

I did a search to see if anyone else has found this, but nothing turned up.

I found a code a while back for my A737 that also works for the Impression. I used set my old phone to GSM only, since I don't live in a 3G area. Also, it was supposed to help conserve battery life. There are also a few other options in there, but I never messed with them much as I didn't want to brick my phone.

Maybe someone can figure out something to do with the other options in here.

Anyway, to enter the code go to the dial screen and type in:
"*#0523#"
when you hit the # button the second time it will bring up the "PS Test" screen.
Press the Back key and it will show a screen that says "Press Back Key or # key TMCommand: 112".
Press the Back key again and the "Camping Information" Screen will show up.
Press the Back key again and you will get a long list of options such as: Idle Mode Information, UE Capability Information, NAS Information Etc.
Push 8 to go into the Phone Control.
Push 4 to go in the Change State screen.

From here you should see options to:
[1]Change Conn_State
[2]Change to WCDMA
[3]Change to GSM.

If you push 3 it will change the phone to GSM mode. To change the phone back to normal follow the same steps, but once in the Change State screen hit 2 to change back to WCDMA mode.

Instead of coming into the backdoor of the service menu why dont you come into the front door.

*#197328640#

then press 1 for debug screen  and you are at the same screen to press 8 for phone control.

By the way your code is wrong.


And this doesnt disable 3G either. Just changes the connection state.