Open the Xperia Companion and from the Main Menu choose Software repair. Go the next through the confirmation proccess by selectin appropraite option. When the following menu appears connect switch your SONY Xperia L2 into a Fastboot Mode. After that start pressing Volume Down and after a 2 seconds plug this USB C cable into mobile.
You have tow options with the factory reset or hard reset of the Sony Xperia M4 Aqua Dual. Much like the other phones in the Xperia range, the M4 Aqua Dual reset can be done by entering the rest code into the mobile phone or it can be done via the menu on the phone.
You can perform a factory reset Sony Xperia M4 Aqua following the instructions below, it resets to your device to the factory default settings.
4. Select SONY Xperia M4 Aqua E2303 model, 5. Now choose exact Xperia M4 Aqua E2303 model from step No. 1. 6. Select firmware by country that you need (unbranded firmware you can recognize by name CUSTOMIZED_CE1 or CUSTOMIZED_SG they come with all language packages from around the world) 7.
To turn off Safe Mode on an SONY Xperia M4 Aqua E2303, follow these steps: Press and hold the "Power" button until the "Power off" option appears. Tap on "Power off," and then tap on "Restart." Your phone will restart and should no longer be in Safe Mode. Press and hold the "Power" button until the "Power off" option appears. Tap and hold on
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sony xperia m4 hard reset