I need help with a Joyous 2612 MX , I did a factory reset on the settings and now the unit locks when it starts, like if it's bricks the starting logo stays on and none of the botons will work display stays frozen, it wont even turn off, I have to unplug the power cable to reboot again, with the same results, any body knows how to fix this problem, do I have to flash or Jtag the unit?:upset::upset: