Hello i had the same problem, its like the above post there is a fusible link of sorts and it opens the circuit when the battery power gets too low. I just took off the phone case and plugged it in and placed the phone about 2 inches from a light bulb. what that did was close the circuit and allowed the battery to charge once again. The phone has to heat up to close the fusible link. so get the phone to about 90 degrees after you plug it in. good luck