: After repairing the IMEI number, a "Patch Certificate" operation is often necessary to fix "Emergency Calls Only" issues and restore signal.
If your phone is already on stock U8 firmware and rooted, skip to Phase 2. Otherwise: g930f u8 imei repair z3x
Compatibility Note: This guide is specifically for the version (SM-G930F). Do not attempt on Qualcomm models (SM-G930A/T/V/P). : After repairing the IMEI number, a "Patch
Without removing KG lock, IMEI repair will fail on U8. : After repairing the IMEI number
Enable by tapping "Build Number" seven times in Settings > About Phone.