: This involves using a third-party tool like Sony Mobile Flasher
: Use the Xperia Companion software on a PC. Select "Software Repair," and follow the prompts to reset your device. Download C1905 Xperia lock remove ftf
to install a stock firmware (.ftf) file. While specific "lock remove" FTF files are sometimes shared in forums, a standard stock firmware file flashed with the "wipe user data" option selected achieves the same result. : This involves using a third-party tool like
: If you have a Google account signed in and the phone has internet access, you can use the Find My Device portal to remotely erase the phone. Download C1905 Xperia lock remove ftf