Chosen Solution

What plist setting should i edit to fix the fingerpint sensor not working after home button replacement?

You can’t. Someone says plist editing, you can be sure that he is bul lshiting. Reprogramming the home button is not iOS level, rather than secure enclave level. It’s separate hardware embedded keys in the A8 and home button. You need Apple employee account and internal server signing each pairing request. It is currently impossible to forge this in any way.