oppo a37 How To step By Step hard reset unlock pattern lock

oppo a37

This tutorial i will share with you how you can easily removed your pattern lock on your android smartphone and reset your device.

before apply this method at first. make sure phone battery charge is not empty. keep battery charger 70% up. also backup your all of user data. 

First method:

1. first press and hold power key to turn off your mobile.
2. in this step press and hold volume down key and power key until appear the logo on screen.
3. when you see logo on the screen release all of keys.
4. now you will see the language Manu to select English.
5. in this step select Wipe data and cache and press power key to confirm.
6. now select Yes and confirm press power key.
7. last step select Reboot then system will be automatic restart.
8. done