1. Charge the battery upto 70 percent.
2.Turn off your Karbonn Android phone.
3.Turn ON the device by pressing and holding the VOLUME UP and Power key together.
4. Android logo with red exclamation mark appears, now press Power key to shift at recovery menu.
5. Select wipe data/Factory reset using volume down key & Volume up to enter.
6. Select Yes-delete all user data and enter through Volume up (Power).
7. Hard reset is done switch ON the mobile.
Karbonn A35 have following features:-
•Android Ice Cream Sandwich OS v4.0
•5-inch Capacitive Touch screen
•5 MP Rear Camera