Hi - I have the Z10 and X9S and also had the Z9S. Both the Z10 and the Z9S have constant blank screen issues. The Z9s is worse than the Z10 for blank screens issues and I had to return the Z9S for a refund. Is anyone else having this blank screen issue on the Z10? I know this is a firmware issue as I also have the X9S and I don't have any blank screen issues on my X9S. I thought I would create this thread to get the attention of the Zidoo tech guys.