I experienced this as well. I paid for an international phone but was shipped a Tencent with the WW rom. The company who sold it (NGP Store USA) is refusing to refund the purchase and blaming me. Anyway, this morning my phone did the fast blink and no response. I plugged it into the rapid charger, and nothing, wouldn't boot, and no indication that it was charging on either charge port. I left the phone on the rapid charger, and after a distressing and long five minutes, a charge icon appeared on the screen. the phone indicated it was charging, and then it did eventually boot. Moral of the story, don't drain the battery.