How to factory reset IRBIS SP550? How to wipe all data in IRBIS SP550? How to bypass screen lock in IRBIS SP550? How to restore defaults in IRBIS SP550?
The following tutorial shows all method of master reset IRBIS SP550. Check out how to accomplish hard reset by hardware keys and Android 7.0 Nougat settings. As a result your IRBIS SP550 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.