: A common repair path involves flashing a Combination File to enable factory test modes, followed by writing the EFS and then the official firmware. Common Repair Workflow
| Path | Purpose | |-------|---------| | /efs/imei/ | Contains imei.txt and mps_code.dat | | /efs/wifi/ | Stores .mac.info for Wi-Fi | | /efs/bluetooth/ | Bluetooth device address | | /efs/FactoryApp/ | Hardware test flags (baro, prox, etc.) | | /efs/nv_data.bin | The main NV (Non-Volatile) data file | | /efs/nv_data.bin.md5 | Checksum for integrity verification | j710f efs file
Manually changing an IMEI is illegal in many jurisdictions. Ensure you are only attempting to restore your original, legal IMEI found on the back of the device or the original box. : A common repair path involves flashing a