G960f cant network unlock [Solved]

[trt]

First operation unlock read MCK code

Operation: Read Codes via Server [UPLOAD Mar 2021]
Selected model: SM-G960F
Software version: 42.10

Checking Login and Password... OK
Ballance: 30 crd.
You have 30 credit(s) left. This operation takes 8 credits.Continue? Yes
Waiting ADB device... OK
Reading phone info...
Model: SM-G960F
Android version: 10
PDA version: G960FXXSFFUB3
CSC version: G960FCKHFFUB3
Phone version: G960FXXSFFUB3
Product code: SM-G960FZKDHTS
CSC country code: Sweden
CSC sales code: HTS
Carrier ID: HTS
Phone SN: 233a2a58d70d7ece
IMEI: 357988098232809
HW version: MP 0.900
RF cal date: 20180727
Chip name: EXYNOS9810
Modem board: SHANNON360
Security patch: 2021-03-01
Boot Warranty bit: 0
SIM State: ABSENT,ABSENT
Searching Samsung modem... detected COM29
Initialization zTool Loader... OK
Running zTool, please wait... OK
Loading... OK
Initialization zTool... OK
Running zTool, please wait... OK
Executing... OK
Searching Ramdump interface... COM30 detected
Rebooting phone... OK
Waiting ADB device... OK
Waiting for device to become ready... OK
Reading ramdump data from phone... OK
Calculating... OK
Searching server... OK
Waiting for server answer... OK
Freeze code (MCK): 80915271
To read NET Lock Code(NCK), please insert SIM Card and enter MCK code, then read the codes again.

Done with Samsung Tool PRO v.42.10

When i enter read code MCK. repeated operation and again this massage - Freeze code (MCK): 80915271
To read NET Lock Code(NCK), please insert SIM Card and enter MCK code, then read the codes again.

[Z3X]

Hello. After MCK readed, insert sim, enter MCK, close window with NCK request and continue reading codes.

[trt]

I follow your instruction. and NCK not read. Always show Freeze code (MCK): 80915271

[Z3X]

Please download same firmware and reflash your phone. Then repeat operation.

[Z3X]

Solved in pm. Closed.