My Samsung Galaxy S3 SGH-T999 from Tmobile doesn t connects on 4G anymore.

[dimitricosta]

Hi friends,

I had dialed an USSD Code to keep my Samsung S3 SGH-T999UVDLJA TMobile android 4.1.1 connecting on Edge to keep battery life.

The problem is I cannot connect to 3G/4G anymore. :-\

Anyone cand give me the USSD code for it, or any other solution?

Thank you very much!

 

[GTWalling]

I posted this for you on the T-Mobile Forum, hope it is the one you want.
*#197328640#

 

[DannyOEP]

Hi, I'm having a problem with the 4g connection on a sg S3 T-Mobile, T999 that was factory unlocked but now I only get E and not even 3G internet. I saw the code you typed but I don't know what to do after that. Please help me. Thanks