Karbonn A21 Hard Reset 100% Done

1. Handset Off

2. Volume Up + Power Button in Hold

3. 5 Sec Green Colour Screen Display

4. Then Keep Holding Volume Up + Power Button


5. Next Red Colour Screen Display Recovery Mode Screen 

6. Now Immediately release Volume Up + Power Button 

7. Then Procedure

8. Not Working For 5 Times (or) 3 times Red Screen Mode Change

9. Thats all