Need help G920T T-MOBILE 5.1.1 no unlock imei 350XXXX



Hi.

I try unlock G920T T-MOBILE 5.1.1 with Octopus Box Samsung 2.1.7.2 but still say network locked and after imei is 350XXXXX.

log:
INFO : 15/01/2016 02:19:52 p.m. > Platform: Samsung Android
INFO : 15/01/2016 02:19:52 p.m. > Selected port: COM25
INFO : 15/01/2016 02:19:52 p.m. > Selected model: SM-G920T
INFO : 15/01/2016 02:19:56 p.m. > Detected phone model: SM-G920T
INFO : 15/01/2016 02:19:56 p.m. > Firmware compiled date: Mon Nov 30 10:58:17 KST 2015
INFO : 15/01/2016 02:19:56 p.m. > PDA version: G920TUVS3DOJC
INFO : 15/01/2016 02:19:57 p.m. > CSC version: G920TTMB3DOJC
INFO : 15/01/2016 02:19:57 p.m. > SW version: G920TUVS3DOJC
INFO : 15/01/2016 02:19:59 p.m. > Phone SN: R58G50R407K
INFO : 15/01/2016 02:19:59 p.m. > Android version: 5.1.1 (LMY47X)
INFO : 15/01/2016 02:19:59 p.m. > Checking Root:
INFO : 15/01/2016 02:20:00 p.m. > Phone is Rooted.
INFO : 15/01/2016 02:20:00 p.m. > Reading security backup, please wait…
INFO : 15/01/2016 02:20:44 p.m. > Backup saved as C:\Program Files\Octoplus\Octoplus_Samsung\BACKUP\Security-SM-G920T-Desconocido15-01-2016_14-19-52-.asec file
INFO : 15/01/2016 02:20:44 p.m. > Unlocking phone…
INFO : 15/01/2016 02:21:17 p.m. > Phone is successfully unlocked
WARN : 15/01/2016 02:21:17 p.m. > To finish the operation, please restart the phone via phone’s menu.

BUT STILL SAY INVALID SIM NETWORK LOCK..
BUT AFTER UNLOCK IMEI IS 350XXXXX

HELP PLEASE.

¿ IS NEW SECURITY ? SUPPORT FOR OCTOPUS BOX 2.1.7.2 ???