SM-N920W8 unlock error by 23.5

[ghacks]

UNLOCK INSTRUCTIONS:
Phone must be rooted!
If the software can't root the phone automatically,
then you must root your device manually.
1. Power on the phone.
2. Tap 7 times on 'Build number' in 'Settings'-'About phone' to enable 'Developer options',
go to 'Settings'-'Developer options' and enable 'USB debugging'.
3. Connect the phone to PC with USB cable, install drivers if needed.
4. Select device in ADB settings.
5. Press 'Unlock' button for direct unlock or 'Read codes' to read security codes.

To reset Google account activation or Samsung reactivation lock:
1. Power on phone in download mode (turn off phone, press vol.down + home + power).
2. Connect phone to PC with USB cable, install drivers if needed.
3. Press 'Reset FRP/React/EE' to deactivate Google/Samsung/EE account activation lock.

Operation: Unlock
Selected model: SM-N920W8
Software version: 23.5

Waiting ADB device...
Please, allow USB debugging on phone... OK
Reading phone info...
Model: SM-N920W8
Android version: 5.1.1
Product code: SM-N920WZSARWC
Phone version: N920W8VLU2AOK5
PDA version: N920W8VLU2AOK5
CSC version: N920W8OYA2AOK5
CSC country code: Canada
CSC sales code: RWC
HW version: REV1.0
Phone S/N: RF8GA27HBWH
Modem board: SHANNON333
RF cal date: 20151026
IMEI:
Checking Super user right... true
Initializating zTool... OK
Running zTool, please wait... error (7.7.8)

Done with Samsung Tool PRO v.23.5