N915FY 6.0.1 unlock failed

[MBtech]

New security for N915FY, can't unlock using last z3x pro version (28.0)

Phone info:

Waiting ADB device... Ok
Reading phone info...
Model: SM-N915FY
Android version: 6.0.1
Product code: SM-N915FZKYDBT
Phone version: N915FYXXU1DPC3
PDA version: N915FYXXS1DQC1
CSC version: N915FYDBT1DPJ1
CSC country code: Germany
CSC sales code: DBT
HW version: MP 0.800
Phone SN: R28G211J7PK
Modem board: MDM9235
RF cal date: 2016.11.04

Done with Samsung Tool PRO v.28.0

Unlock operation Log:

Operation: Unlock
Selected model: SM-N915FY
Selected port: COM168 SAMSUNG Mobile USB Serial Port
Software version: 28.0

Reading phone info...
Reading IMEI... Ok
IMEI: 358302060******
Unlocking... error (0)

[A4L]

Downgrade the modem to the 5.1.1 version.