G930T unlock fail error (4) Help

[andder10]

UNLOCK INSTRUCTIONS:
To unlock:
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, write your login and password in window if it will appear.
(Login and password will be saved as default after first input and can be changed in settings)

To reset Pattern lock:
1. Power on the phone in download mode (turn off phone, press vol.down + home + power).
2. Connect the phone to PC with USB cable, install drivers if needed.
3. Press 'Reset Pattern Lock' button.

To reset Google account activation lock:
1. ADB must be activated in any way (you can flash sBoot from combination firmware,
make sure, that you are not upgrade sBoot).
2. Connect the phone to PC with USB cable, install drivers if needed.
3. Select device in ADB settings.
4. Press 'Reset FRP' to deactivate Google account activation lock.

To reset Google account activation or Samsung reactivation lock:
1. Power on the phone in download mode (turn off phone, press vol.down + home + power).
2. Connect the 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-G930T
Selected port: COM804 SAMSUNG Mobile USB Serial Port
Software version: 30.7

Checking Login and Password... OK
Ballance: 85 crd.
You have 85 credit(s) left. This operation takes 10 credits.Continue? Yes
Waiting ADB device... OK
Reading phone info...
Model: SM-G930T
Android version: 7.0
Product code: Not Active
Phone version: G930TUVS4BQJ2
PDA version: G930TUVS4BQJ2
CSC version: G930TTMB4BQJ2
CSC country code: USA
CSC sales code: TMB
HW version: MSM8996.00
Phone SN: R28H50STA4A
Chip name: MSM8996
Modem board: MSM8996
Security patch: 2017-11-01
RF cal date: 2016.05.11
IMEI: 359755070040429
Waiting for device to become ready... OK
Initialization zTool... OK
Running zTool, please wait...
Start... OK
Initialization... OK
Generate and check client proof... OK
Verify proof by client... OK
Reading data from phone... OK
Rebooting to upload... OK
Searching Ramdump interface... COM5 detected
Reading data from phone... OK
Calculating... error (4)

Done with Samsung Tool PRO v.30.7

Help

[wirelessinfinit]

Check *#0011# what does it show for

MIPI TEST
IMEI Cert

Also make sure you are connecting the phone directly to the computer. NO USB HUBS
And use Samsung USB cable.