How to factory reset BLU R2? How to wipe all data in BLU R2? How to bypass screen lock in BLU R2? How to restore defaults in BLU R2?
The following tutorial shows all method of master reset BLU R2. Check out how to accomplish hard reset by hardware keys and Android 7.0 Nougat settings. As a result your BLU R2 will be as new and your MediaTek MT6580 core will run faster.
BLU R1 HD How to Hard Reset with buttons via Android System Recovery - video