Default Where are touchscreen related files stored/ help fixing touchscreen

I have a 9 inch xelio tablet with an unresponsive touchscreen
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I have access to it through adb with root shell through adb
I have stock recovery that can install signed update.zip files, although I have not confirmed it
I have a fully working xelio 9 inch

If its not a hardware failure what can I do with the tools available to fix it
At the moment I wantdd to try using good files from the working one to possibly fix it
I also was considering making some partition images but I couldn't get them made, and this tablet does not support fast boot


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