sprint galaxy 3 no signal when is charging

hello im unlocking phones for a while and never it happen to me last week i flash a sprint galaxy 3 to page plus and the flash is ok the problem is that when the phone is plug to charge it loose signal and can not recive o make calls..

you unpluged wait a couple seconds and signal is ok

but every time that they need to charge the phone it loose signal i know that the phone was fine before the flash because i always check it

any idea of whats going on whit this phone?

thanks in advance for you help :D

via Welcome to gsm-tips http://forum.gsmhosting.com/vbb/f770/sprint-galaxy-3-no-signal-when-charging-1756374/