I bought dji phantom 4 last april 15/ yesterday at best buy, i thought it just need to charge and play . unfortunately battery was blinkin and blinking wait to be full charge but its turned off in about 15 or 20 min.repeated different strategy to get luck , nothing happen. Tried to search in google/ youtube to know the issue and to correct if its minor issue . We paid $1380c on sale but its not totally worth it for us. pls give as advice or suggestions. Thank u