How to factory reset BLU C5? How to wipe all data in BLU C5? How to bypass screen lock in BLU C5? How to restore defaults in BLU C5?
The following tutorial shows all method of master reset BLU C5. Check out how to accomplish hard reset by hardware keys and Android 6.0 Marshmallow settings. As a result your BLU C5 will be as new and your MediaTek MT6570 core will run faster.
Hard Reset Blu Studio C5+5 - video