Today I have been installing some aplications to my Onda V971, after that I have switch off normally, but now I can't power on again, it's totally black, now it is bricked. Totally black, no power on, no pc detection, no nothing is just a fancy chop block. Would someone please help me out to make this one back to pc detection to flash stock firmware again...? thank you very much, I'm desperate. I can't install nothing because PC isn't detectting the tablet, I have test the combination with power and home buttons, and all the things that I have read in everyplace, nothing is working!, please help!