how to do a Hard reset beaglebone Rev C

Hi members,

I am struck in a boot loop in angstrom os !!!

This is was it did

i was updating my agstrom kernel by keeping my computer as my powersupply and internet source due to a power cut the system shutdown along with beaglebone from then i am unable to login to my BBB trough SSH
i am working on 3.8 kernel

any suggestions are deeply appreciated thank you

/Solutions tried so far********/

made a new SD card with debian in it but BBB is not reading the sd card :frowning: