Can't register to Tmobile Home internet sim to GL-X3000

I did AT command, nothing

This did not help?

How can i do that? I have no idea how.
this command? AT+EGMR=1,7,?

Yep, something like
AT+EGMR=1,7,"123456789101213"

I did that, I even filled in apn"fast.t-mobile.com" and ttl is 66 too