Troubleshooting and Repairing the IMEI on Your Sony Xperia XZ3
Diag Mode: Most repair software requires the device to be in Diagnostic Mode. This is often triggered via specific ADB commands or terminal scripts (setprop commands). Diagnostic & Helpful Features
Repairing or changing the IMEI on a Sony Xperia XZ3 is a complex software procedure that usually requires specific professional tools. Because the IMEI is tied to the device's hardware identity, standard factory resets or simple menu options cannot "repair" it if it becomes corrupted or lost. Professional Repair Methods
: A long-standing professional tool specifically designed for Sony mobile software servicing. QFIL (Qualcomm Flash Image Loader)
Write IMEI manually (last resort / for authorized repairs)
If you want, I can: