Chosen Solution

Just replaced my iPhone 6 plus screen and it will only work when the home button connector is disconnected from the phone.

In most cases its the following: iphone 6 home button extention - https://amzn.to/2QUczLUiphone 6 home button itselffinally if the first 2 dont work (90% of the time they do) check for damaged connector pins where it plugs in / and or could be logic board issue