In Developer Options , toggle on USB Debugging and OEM Unlocking .
Go to the "Backup" tab and click Read EFS . This is a critical safety step to prevent permanent baseband loss. g930f u8 imei repair z3x
Go to Settings > About Phone > Software Information and tap "Build Number" seven times. In Developer Options , toggle on USB Debugging
Navigate to the Repair tab. Enter the original 15-digit IMEI number found on the device's back cover or original box into the "IMEI" field. Go to Settings > About Phone > Software
Even after a successful repair, the device will likely show "No Service" because the new IMEI is not yet "certified" by the firmware.
Grant on the phone screen when the prompt appears. 3. The Repair Process
Click the Repair button. The tool will communicate with the phone, bypass security, and rewrite the IMEI. The device will reboot automatically during this phase. 4. Patching the Certificate (Network Fix)