N910T write cert (0)

Operation: Write CERT
Selected model: SM-N910T
Selected port: COM17 SAMSUNG Mobile USB Serial Port
Software version: 26.6

Checking certificate file… OK
KEY ID: 0772
Waiting ADB device… OK
Reading phone info…
Model: SM-N910T
Android version: 4.4.4
Product code: SM2N910TZKETMB
Phone version: N910TUVU2DOF1
PDA version: FA44_N910TUVU2AOF1
CSC version:
CSC country code:
CSC sales code:
HW version: REV1.1
Phone S/N: RF8G20ZJ08V
Modem board: MDM9225M
RF cal date: 2015.02.12
IMEI: 358754060143732
Initialization AT RIL… OK
Bypass MSL… OK
Checking for compatible phone and cert… OK
Phone KEY ID: 0772
Writing CERT… error (0)
Done with Samsung Tool PRO v.26.6

I always do with this method, flashing combo file, reset msl, and unlock and write cert, but now failed
Any suggest?