You should get a new sim from tmobile. I had a old tmobile sim, it gave lte signal for my att HTC One X. But it couldnt give LTE for my att note 2. I thought some thing prevents my note 2 pick up tmobile LTE signal (i did this aws mod, switched baseband, rom, radio...). Yesterday, i decided to get a new tmobile sim, and now i have LTE. View attachment 2695000
Sent from my SGH-T889 using Tapatalk
Wow I need a new Sim card from Tmobile. Could you read the model number on the new Sim card so that we could try to get the same model?
I think it starts with TM.
Sent from my SAMSUNG-SGH-I337 using xda app-developers app