How to factory reset NUU A4L? How to wipe all data in NUU A4L? How to bypass screen lock in NUU A4L? How to restore defaults in NUU A4L?
The following tutorial shows all method of master reset NUU A4L. Check out how to accomplish hard reset by hardware keys and Android 7.0 Nougat settings. As a result your NUU A4L will be as new and your MediaTek MT6737M core will run faster.
Hard Reset will erase all of your data
All described operations you are doing at your own risk.