: Any low-level software repair or firmware flash on the Xperia XZ3 will erase all user data
For enthusiasts or technicians, the following tools and methods are commonly used to address IMEI issues:
Settings > System > Advanced > Reset options > Erase all data
No. IMEI repair restores identity, but carrier lock is stored separately in the SIM lock partition.
: Use the Sony Xperia Companion tool on a PC. Select "Software Repair" to reinstall the official firmware, which can sometimes restore corrupted baseband files.
The following methods focus on if it was lost due to a software error, such as a bad firmware flash. 1. Official Software Repair (Recommended)
If the above methods are not successful, users can contact Sony support or a professional repair service for assistance.