Default Display issues

Well, my HTC One X 32GB-Version suddenly had display-problems (not showing any picture at all, a.k.a. "BSOD"ed; shoing picture than it froze or was a splitte/broken-picter, etc.).
So I opened it up and looked at the MB.
It seems as if the little white plastic-piece, which keeps the flex-cable in contact with the board came lose...

Any way to fix that ("easily"), without replacing the board?
I have some clues, so don't be shy.