A hard reset (also known as a factory reset) will erase ALL data from your phone. This includes contacts, photos, apps, messages, and personal settings. Back up your data before proceeding if possible.
Press and hold the Power button . If it won't turn off normally, remove the back cover, take out the battery, wait 10 seconds, and reinsert it. (Do not turn the phone on yet). How to Hard Reset MOBICEL Vibe