The problem of using the original data cable of the phone. 2, if not, use the phone charger to charge the phone, eliminate the phone problem. If it can be charged, it is a mobile power problem. 3, to determine the mobile power problem, first full charge to the mobile power and try again. 4, if the mobile power is fully charged, still can not charge the mobile phone, that is the mobile power problem, there may be too small voltage, or no current output, basically the circuit board is broken, need to send after-sales testing.