Hi @pappyk ,
Follow the steps the Chosen Solution in this link and see if it resolves the problem, don’t forget to check the “update 30/09/2106” section as well if the first section doesn’t apply.
I realize that the solution is not for your tablet but since they both are made by HP and use the Windows OS it could be very similar. Worth a look anyway.
How to reinstall touch screen driver? My touch screen stopped working.
If it still doesn’t work perhaps you should go back and check the flex cable connectors with a strong light and a magnifying glass, hopefully the connectors haven’t been damaged and are making a good connection. It is a very co-incidental failure otherwise.