As of mid-2024 to 2025, several reports indicate the .

To check your own status, use the service code *#*#7378423#*#* in your dialer.

The LED on the phone should turn , indicating it is in Flash Mode (S1 Mode). Process the Unlock :

Tired of Sony’s bootloader restrictions? 📱 If your Xperia says "Bootloader unlock allowed: No," is often the only way to flip that switch to "Yes".