is a technical process typically required after a software corruption, a failed firmware flash, or when the device displays a "Null" or "000000" IMEI. Because the IMEI is a unique identifier tied to the device's hardware, losing it often results in the loss of cellular connectivity. Understanding IMEI Issues on Sony XZ3 Sony Xperia XZ3
Restore EFS from backup
and hold the button while connecting it to the PC. Note : This will wipe all user data. Method 2: Advanced Repair via Diagnostics Mode repair imei sony xz3