Only use reputable custom ROMs from forums like XDA Developers.
Open the boot subfolder inside the firmware directory and delete delivery.xml to prevent security validation conflicts during cross-region flashing.
Complete Guide to Sony Xperia XZ3 IMEI Repair: Methods, Risks, and Legalities
Open the stock phone application and type *#06# . If a blank box, "Null," or "00000000000000" appears, your IMEI partition is corrupted.
unless you are the original manufacturer or a licensed service center correcting a genuine software fault (e.g., after a mainboard replacement where the IMEI became null). Unauthorized IMEI changes can be considered a criminal offense (cloning, fraud, etc.). repair imei sony xz3
Changing an IMEI number to a different string or copying an IMEI from another device is illegal in many countries, including the United States (under the Mobile Device Theft Prevention Act), the United Kingdom, and the European Union. This practice is heavily penalized as it can be used to bypass blacklist statuses on stolen phones. Always ensure you are targeting the restoration of the original IMEI printed on your phone's retail box or SIM tray slot. Summary Troubleshooting Checklist Issue Encountered Potential Solution PC does not recognize the phone Re-install Sony Flashmode drivers; swap to a USB 2.0 port. IMEI is still "Null" after stock flash
Steps with Chimera (example):
Unplug the device and boot it up. Check if the baseband and IMEI have initialized. Step 3: Diagnostic Mode and QCN Reconstruction
Settings > System > Advanced > Reset options > Erase all data Only use reputable custom ROMs from forums like
In many countries, changing or modifying an IMEI number that does not match the original manufacturer’s IMEI is illegal. This guide is intended solely for repairing the original IMEI after it has been corrupted (restoring it to its original state).
Here are some of the most reputable tools that support the Sony Xperia XZ3:
If the IMEI is corrupted, the most reliable way to fix it is to reload the original stock firmware: Sony Xperia Companion : Use the official Xperia Companion
Before turning to advanced software tools, rule out basic software glitches using these step-by-step diagnostic methods. 1. Check Your Current Status If a blank box, "Null," or "00000000000000" appears,
. This may fix minor software glitches causing the IMEI to hide. 2. Software Restoration
Once the repair process finishes and your Xperia XZ3 reboots, verify the fix:
Once the command window indicates the flash is complete, unplug your device and boot it up. Check if the baseband and IMEI have successfully returned.
Method 1: The Official Software Repair (Best for Minor Corruption)
In rare cases, the corruption is due to a failing baseband chip on the motherboard. 5. Prevention Tips
To avoid going through this tedious recovery process again, implement these safety measures: