For severe corruption (e.g., after a bad flash), you may need to use Qualcomm-specific tools. This requires the device to have a chipset.
The purpose of this guide is to restore the original IMEI (repair) that was lost due to software corruption. repair imei sony xz3
Dial *#06# on your phone dialer. If it shows "Null," "Unknown," or a generic "0049..." number, the IMEI is lost. For severe corruption (e
and connect the Sony XZ3 in USB Debugging mode. Select the Repair IMEI option. Enter the original IMEI from your phone box when prompted. Dial *#06# on your phone dialer
Use the Software Download tool within QPST to "Restore" a valid .qcn file that has been edited with your device's original IMEI. Method 3: Third-Party Service Tools
The software will apply a patch, restore the EFS, and reboot the device. 4. Hardware and Advanced Fixes