karbonn a7 + hang on logo 1000% working solution

put this file on mmc, then put this mmc in phone
update_1 - Download - 4shared

First remove battery then insert it back , press vol up + power , then u will see green screen with recovery mode don't leave vol up & power until u see red screen saying recovery mode after red screen , press center button which is i think home button, now u will see four options

1.reboot now
2.apply update from sd
3.wipe-data
4.wipe cache

select 2nd option, which is apply update from sd card(u can select option by power button) select update.rar which u have been copied in mmc wait for a while let be update your phone after successfully update , u will see four option are back

1.reboot now
2.apply update from sd
3.wipe-data
4.wipe cache

this time select reboot now,