Touch Screen Not Working on IdeaTab 2109A-F

I have an IdeaTab 2109A-F tablet.

The touch screen has stopped responding.

The unit boots up just fine, but nothing on the screen responds to touch.

I have tried the power drain, charge fully, then turn on. This made no difference.

I can turn the tablet off by holding the power button down for 10+ seconds. I can then get to the Android System Recovery screen by holding Volume + at the same time as the Power On button. On the System Recovery screen, none of these fix the problem:

- Reboot system now
- Wipe Cache Partition
- Wipe data/factory reset

When I select "apply update from external storage" I get the message:

Choose a package to install:

/sdcard

../

But I have no idea what to do then....


When I select "Apply update from ADB" I get the message:

Now send the package you want to apply to the device with "adb sideload <filename>"...

Where would I find this package? And how do I get it sent to my tablet?

Anyone got any ideas?

(I am not very technical... sorry!)

Thanks!
tmw