mobile

Hi, I get my CHUWI Vi8 dualboot 16.04.2015. Everything was ok, it worked very good but at the next day morning I wanted to use it and I find that touchscreen doesn't work. I left it for few minutes and when I look at it again It was rebooting, as it turned out - with no end. I finally turned it of when I lost hope and turn on again. This time I get info that my device is diagnosed, then that it's repairing, at the and I saw windows 8 repair panel but all in chinese. I wanted to choose one of two buttons but touchscreen still didn't working. Next time I used mouse by OTG and by lucky choosing some options I eld to reset. But it changed nothing. Then I get info from seller to click vol+ and power button for 20 seconds. It brought me system selection screen, I choose android with mouse and it worked normally just without touch. I don't what else I can do to fix it. Have you any ideas?

PS: I know it's a cliche but sorry for my english;]