I am having same issue with Google play I did get to a screen where it asked which account I used the mouse to say ok and it stayed at black screen
Cyrowth
You can use file manager to load apk files
Two people with u5s don't have the issue so it's not a firmware issue period
If you had been willing to provide info instead of just complaining about it working on your x5s I would have suggested a reset to fix your problem
I'm finished with this
One mistake you might be making is designating an episode as favs instead of the series
If you designate the series as favs all episodes available will load