: There is no standalone "tool" file; you use the Sony Developer World Unlock Portal to request a code via your IMEI. Process : Get your IMEI (dial *#06# ).
: Visit the Sony Developer World page, select your model, and enter your IMEI (found by dialing *#06# ) to receive your unlock code via email. sony unlock tool download
Download Android SDK Platform-Tools to use fastboot commands from your PC. : There is no standalone "tool" file; you