For U8, always select in the settings tab before repair. Default settings won’t work.
: The latest version of Z3X Samsung Tool Pro (Version 40.1 or higher is recommended for U8 support). Drivers : Samsung USB Drivers installed on a Windows PC. g930f u8 imei repair z3x
Enter the original IMEI number (found on the back of the device or original box) into the IMEI field. For U8, always select in the settings tab before repair
| Issue | Fix | |-------|-----| | Device not rooted | Flash Magisk via TWRP, then enable root for ADB | | Secure check fail | Disable RMM/KG lock: flash RMM_Remove.zip before repair | | IMEI still null | Restore EFS backup (if you have one) then retry | | No network after repair | Flash stock U8 modem (CP file) via Odin after repair | Drivers : Samsung USB Drivers installed on a Windows PC
: After repairing the IMEI number, a "Patch Certificate" operation is often necessary to fix "Emergency Calls Only" issues and restore signal.