Above Link For More Methods.Description :Sony How to factory reset on your Sony Xperia M4 Aqua ? If you need to wipe your phone's data for any reason, you can perform a factory reset from the settings menu. This feature will completely erase your personal information and data from your device and make it 100% clean. 1- First step: To access the settings menu on your Sony Xperia M4 Aqua, look for the icon that resembles a cogwheel. Click or tap on it to open the settings menu. 2- Second step: Scroll down the Sony Xperia M4 Aqua settings to the bottom where you will see the section called "System", click or tap to continue. 3- Third step: Reply All forum topics Previous Topic Next Topic 7 REPLIES Emil Enthusiast March 2017 Hi @ChrisCrinkle, I'm sorry to hear that. You can try to reset your screen lock if you have activated My Xperia Theft Protection in your M4 Aqua. Note that you have had to active this before your phone got locked. .

sony xperia m4 aqua hard reset