For reliability and operability concerns, the absolute maximum junction temperature of OMAP4460 has to
be below 125ºC and the maximum average junction tempe...
Was this working before the last release?
I have already answered to that question in postscriptum.
No, HDMI was never worked on 4.2.2 for me. But I used only two latest releases.
There was no problem with 4.0.28 Freezenook's ROM (based on offi...
No picture on TV from tablet using HDMI cable, except there is these errors flooding log file:
PS: Same for previous and latest build. (can't confirm this for earlier builds)
If you had custom rom installed and made reset to factory settings, then this is an usual problem.
Try to flash rom again.
Check if you can enter in recovery menu by pressing "volume up + power on" on powered off device.
I think you need a new screen. But mostly possible you will not be able to replace it if you're not skilled at repairing small things.
Touch screen digitizer is not what you need if your touchscreen works normally.