phone wont charge only lights blink on bottom

[Android Question]

i have a motorola xt555c with walmarts "straigh talk' my phone died last night then started to acgt very funny, it doesnt charge, i tried 3 differnt chargers and once it eventually turned on for a few seconds but the camera flash was randomly going off, now when i plug it it, it wont charge, the only thing that happens is the 4 lights along the bottom blink, thats it no charge, how do i reset or fix this phone?