If you cannot access the S1 tool or find it too complex, consider these alternatives:

: Users frequently report that the backend servers required for the tool to function are permanently down or abandoned. Paid Service

Software claiming to use

Sony provides an official bootloader unlock process for some of its devices. This process involves using a specific tool, unlock_code , which generates an unlock code based on the device's IMEI number. However, not all Sony devices support bootloader unlocking, and some may require additional steps or tools.

S1 Unlock Tool , commonly referred to in technical communities as the qUnlock Tool