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Free tools often fail on Android 11+ due to security patches. Paid tools like Octoplus Box have a higher success rate for the Poco X3 NFC. repair imei poco x3 nfc
| Issue | Possible fix | |--------|----------------| | Diag mode won’t enable | Use custom kernel or downgrade to MIUI 12.0.x | | QCN restore fails | Use → Tools → QCN Backup/Restore | | IMEI reverts after reboot | Persist via NV backup restore from a donor phone with same chipset | | No network after write | Restore original calibration (NV items 4477, 441, 466, etc.) | Also check in
This will wipe ALL data and lock your bootloader if you select "Clean All and Lock." repair imei poco x3 nfc