How to factory resetPOLYTRON P520 Prime 7S? How to wipe all data in POLYTRON P520 Prime 7S? How to bypass screen lock in POLYTRON P520 Prime 7S? How to restore defaults in POLYTRON P520 Prime 7S?
The following tutorial shows all method of master reset POLYTRON P520 Prime 7S. Check out how to accomplish hard reset by hardware keys and Android 6.0 Marshmallow settings. As a result your POLYTRON P520 Prime 7S will be as new and your core will run faster.
Turn off your Polytron PRIME 7S P520.
Then press and hold the Volume Down + Power button simultaneously until the Polytronlogo appears then release and wait until it enters recovery mode.
Scroll down to "wipedata/factoryreset" using Volumebuttons and click on it by pushing the Powerkey.