You can do hard reset. Hold the power and home button until it
restart.
If cannot, try to borrow usb cable from your friend and if all
else fail, u might need to change the battery. Small surgery... can
do yourself or go SLS ask them do.
If you do not want to repair, can bring to apple, think can do a
Oit of warranty replacement for 350.
Pls pls dun sell to unsuspecting forumers...unethical...