Unlock J737T lost credit

UNLOCK INSTRUCTIONS:
Unlocking using sever:
1. Power on the phone.
2. Tap 7 times on 'Build number' in 'Settings'-'About phone'-'Software information'
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 TMB via server' button, 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.)

Operation: Unlock
Selected model: SM-J737T
Software version: 36.8

Checking Login and Password... OK
Ballance: 7 crd.
You have 7 credit(s) left. This operation takes 5 credits.Continue? Yes
Waiting ADB device... OK
Reading phone info...
Model: SM-J737T
Android version: 8.0.0
PDA version: J737TUVS4ASB2
CSC version: J737TTMB4ASB2
Phone version: J737TUVS4ASB2
Product code: SM2J737TZSATMB
CSC country code: USA
CSC sales code: TMB
Phone SN: R58K92C6BBV
IMEI: 356058091839967
HW version: REV1.0
RF cal date: 20180914
Chip name: EXYNOS7870
Modem board: SHANNON315
Security patch: 2019-02-01
Boot Warranty bit: 0
SIM State: ABSENT
Initialization zTool... OK
Running zTool, please wait... OK
Reading data from phone... OK
Searching server... OK
Checking server answer... OK
Executing... OK
Reading data from phone... OK
Calculating... OK
Searching server... error
could not connect to server

Done with Samsung Tool PRO v.36.8

Login: zsc_OEDzLMCL
mail: hoangtrongfb@gmail.com