While holding the button, connect the phone to your PC via USB. The Flashtool should detect it and begin flashing.
Follow the prompts to reset the device. This will also remove any forgotten pattern or PIN locks. Download D2105 Xperia Dual lock remove ftf
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. While holding the button, connect the phone to
: Ensure your PC recognizes the device in "Flash Mode." These are often bundled with Flashtool. While holding the button
If you prefer an official route, download the tool from Sony. Select Software Repair .