Video files Not playing on IdeaTab A2107A-F.

[jabardast]

Hi,

I noticed for past few weeks, my tablet is not playing any video files.
I downloaded some you tube trailers via tubemate which were working fine previously.

Now if I play then, I get a blank screen. No error , no video / audio. Just a blank screen with video player.

Some times it shows loading circle, but it never completes.

VLC player was working fine on it. I watched couple of movies it. Now VLC will also not play anything. Same issue, blank screen.

I tried ES Video player also, same issue.

Anyone knows what is the issue and how to fix it ?

IdeaTab A2107A-F.
Details are -Build No. - A2107A-F_S486_130221

Android - 4.0.3

I haven't tried factory reset yet. If thats the only solution, I may try it over the weekend.
But I wanted to avoid it

TIA,
Jab.