is a powerful but dangerous scalpel. For a carrier-locked Sony Xperia that official methods refuse to touch (specifically Japanese or US carrier variants), it may be the only software solution.
Extract the downloaded QUnlockTool ZIP archive into a dedicated folder on your local C:\ drive. qunlocktool sony
You install QUnlockTool on a Windows PC. You must install Qualcomm HS-USB QDLoader 9008 drivers. Sony devices enter this mode by powering off and holding specific key combinations while connecting USB. is a powerful but dangerous scalpel