To remove a lock from a Sony Xperia E1 Dual (D2105) , you generally need to flash the device with its stock firmware (FTF file) using a specialized tool. This process will perform a factory reset, erasing all user data.
: If the device has Google Factory Reset Protection (FRP) enabled, you will still need the original Google account credentials after the flash to complete the setup. Download D2105 Xperia Dual lock remove ftf
Follow the prompts to reset the device. This will also remove any forgotten pattern or PIN locks. To remove a lock from a Sony Xperia