nokia lumia 610 hard reset

nokia mobile phone slow problem. freezing any option is not working auto restart problem. you can solve your problem follow this instruction.
first backup your all data and recharge your mobile battery make sure battery charge is not empty.

1. off you device first. and remove sim card and memory card.
2. Press and hold volume down + Camera and now press together power button 
after release only power button when mobile vibrates and show nokia logo on screen.
3. Release power button only continue press volume down button and Camera Button. 
wait few mints 
if have any question please ask me....thank you.