This tool for Windows/macOS can perform a "Software Repair" that reinstalls the factory firmware. Note that this erases all data and requires at least 80% battery.
: These are popular hardware/software "boxes" used to rewrite IMEI information on Sony devices. Chimera Tool repair imei sony xz3
, these tools can sometimes resolve baseband errors that cause IMEI issues by flashing the correct regional modem files. Verification and Diagnostics This tool for Windows/macOS can perform a "Software
Before trying third-party tools, use Sony's official software to fix corrupted system files that might be causing the IMEI to appear "null." Sony Xperia Companion (PC or Mac). Process: Install and open Xperia Companion . Click Software Repair on the main menu. Chimera Tool , these tools can sometimes resolve
Confirm symptom and try simple fixes
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.).
Before turning to advanced third-party tools, try the official route. Sony’s own software can often fix "broken" system files that cause IMEI-related signal issues. Download and install the Xperia Companion on your PC. Open the application and select . Power off your XZ3.