Originally Posted by PaulVir
Idk how to post pics but it's on version 4.2.2
Something is not right there. I suspect you made a typo. If the phone really says 4.2.2, then it's a fake running Android JB. But probably you have a real 900F phone with Hong Kong i.e. Chinese 4.4
.2 firmware. Explaining the Chinese characters. And you probably just need to configure your APN /LTE information for TMobile.
It would help if you install the app I suggested and gave us the other details.