G928T s6 edge+

1. phone has been rooted
2. reset EFS
3. Patched cert.

After phone goes thru start-up it flashes at the top T-Mobile then gone.
t-mobile sim in phone says"no service, not registered on network, unfortunatley T-Mobile my account has stopped.
*#06# shows IMEI but no Serial NUmber.

Operation: Patch Certificate
Selected model: SM-G928T
Software version: 23.9

Waiting ADB device… OK
Reading phone info…
Model: SM-G928T
Android version: 5.1.1
Product code: SM-G928TZDATMB
Phone version: G928TUVU2COI5
PDA version: G928TUVU2COI5
CSC version: G928TTMB2COI5
CSC country code: USA
CSC sales code: TMB
HW version: REV1.0
Phone S/N:
Modem board: SHANNON333
RF cal date: 20150723
Checking Super user right… true
Initializating zTool… OK
Running zTool, please wait… OK
Reading modem… OK
Patching modem… OK
Writing modem… OK
Rebooting phone… OK
Patching CERT check… done

Done with Samsung Tool PRO v.23.9

Need some help