How to erase pattern in lava mobile?

— You will need to perform a hard reset operation. You can do this by pressing...

— To unlock the phone, a factory reset operation needs to be performed. To do...

— If you want to restore functionality to your phone, then you need to perform a...

— To unlock the phone, turn off the phone and press Volume Up + Power button...

— If you reboot your phone, you will not lose the contacts, but also you will not...

— If the pattern lock wasn't removed even if the phone was already restored, then...