Karbonn A21 Hard Reset
Hard Reset:
- Press and hold VOLUME UP + POWER KEY
- now you see green screen dont release volume up key
- after 10 seconds you see red screen, now release Volume up key.
- now tou see recovery options.
- select wipe data with factory reset and press power key for 2 sec.
- now select yes and press power key for 2 second.
- now reboot device.
