IPhone 6 screen non responsive. This is not the known issue. I have replaced screen / digitizer and it works normally for an hour or so?

Then the screen freezes and if press on the screen sometimes it will work sometimes not same with a reboot… I restored the phone completely wondering if it was a software issue and it's not prob still continues. Connectors are al good yet I still believe it's an hardware issue.

Possibly a heat related issue.

Hmm

Try to go on Apple Store they will found the problem

This is called touch ic failure. It can be fixed but with the phone being 3 years old its probably best to upgrade