Solved: how to hard reset Qtek 8020 : Power off phone. Press both LEFT and RIGHT SOFT keys, then...

Qtek 8020 hard reset with keys

Power off phone. Press both LEFT and RIGHT SOFT keys, then press POWER for a few sec. Keep holding these 3 buttons until you see

"Press 0 to restore factory default, other keys to Quit."

Press 0 to hard reset Qtek 8020.