charging and home buttons not working after screen replacement

Charger port might need replacement

The home button could be effected or if you have another screen to try it on to see if old screen isnt completely broken test it on the old

The loss of home button functionality while retaining the use of Touch ID is likely caused by damage to the IC that is on the home button. To resolve this you could either bring it to Apple for a screen replacement (where they’ll replace the home button with the whole display) for $219.00CAD or you can order a replacement home button from JC or HX and you’ll regain the home button, but lose Touch ID functionality.

As far as the charge port issue, it could be some damage to the flex cables that is preventing charging but allowing audio, you’d have to connect a working chargeport to the phone and see if there’s any change.

Hope this helps!