Hi,

With regards to screen rotate have you checked that the following setting is ticked?

Settings > Screen > Auto Rotate.

Also the screen won't rotate if the keyboard is docked.

With sound, have you tried using headphones to see if there is sound?

Hi,

Try the following.

Use the tablet's backup feature to backup your tablet.

Then reset your tablet using the factory data reset feature.

Once your tablet has been reset, see if the touchscreen and the sound work properly.

If so it may be that either a software glitch or a downloaded app was causing the problem.

Restore your tablet with the backup you made, using the tablet's restore feature.

See if the touchscreen and the sound still work.

If so, the reset has fixed whatever glitch was causing the problem

If not, perhaps a downloaded app is causing the problem.

The trick is now to find out which one.