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.
: The industry standard for flashing Sony Xperia devices. You can find versions such as Flashtool 0.9.18.1 commonly recommended for older models. Sony Xperia Drivers 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