N920T unlock error

[choumankan]

How i can fix this problem?
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.
(Sometimes needs to perform 'wipe data/factory reset' once more, to complete this locks removal.)

Operation: Unlock
Selected model: SM-N920T
Software version: 25.0

Waiting ADB device... OK
Reading phone info...
Model: SM-N920T
Android version: 5.1.1
Product code:
Phone version:
PDA version: N920TUVS2COKC
CSC version: N920TTMB2COKC
CSC country code: USA
CSC sales code: TMB
HW version:
Phone S/N: RF1D45EJGGR
Modem board:
RF cal date:
IMEI:
Checking Super user right... true
Initializating zTool... OK
Running zTool, please wait...
Start... OK
Init... OK
Generate and check client proof... OK
Verify proof by client... error (error(5))

Done with Samsung Tool PRO v.25.0

[xerraco]

You have an unknown baseband mate. Restore if you have backup. Repeat steps.


Br,
xerraco

[Isellcert]

No has baseband is fine, sometimes z3x dosnt show it, you need to downgrade modem and downgrade to 23.9 z3x

Sent from my SM-G935T using Tapatalk

[choumankan]

do u have modem to downlowd sir

[choumankan]

do u have modem to downlowd sir