Log:
UNLOCK INSTRUCCIONES:
To read security codes using sever:
Knox warranty does not matter.
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 'Read Codes 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: Read Codes via Server
Selected model: SM-G975U
Software version: 37.0
Checking Login and Password... Listo
Ballance: 25 crd.
You have 25 credit(s) left. This operation takes 5 credits.Continue? Si
Waiting for device to become ready... Listo
Leyendo información del teléfono ...
Modelo: SM-G975U
Android version: 9
PDA version: G975USQU1ASD7
CSC version: G975UOYN1ASD7
Versión del telefono: G975USQU1ASD7
Código del Producto: SM-G975UZKAATT
Código de país CSC: USA
Código de Venta CSC: ATT
Phone SN:
IMEI:
HW version: REV1.0
RF cal date: 2019.03.26
Chip name: SM8150
Módem: SM8150
Security patch: 2019-04-01
Boot Warranty bit: 0
SIM State: NETWORK_LOCKED
Initialization zTool... Listo
Running zTool, please wait... Listo
Lectura de datos desde el teléfono ... Listo
Buscando servidor... Listo
Waiting for server answer... Listo
Calculando... error (1)
Reboot phone and try again.
Check ADB drivers, USB cable. Don't use USB Hubs
If this repeated then reflash phone and make factory reset.
Done with Samsung Tool PRO v.37.0