Home button still not working after replacing itHere's the long story on the phone: Six months ago, gf broke the screen. I ordered a new one (not from here) and replaced it....
Answer to: Touch ID not working after water damageWhen you say "I got an iPhone...", do you mean you had it from before and it became water damaged, or do you mean you obtained it from somewhere? If this is a phone you've obtained and you don't know the history of the phone, the home button could have been replaced. If not replaced by Apple, the fingerprint scanner won't work. Also, you say you replaced the flex cable, but if you did that, then most certainly the fingerprint scanner won't work. It is chip matched to the CPU and can only be fixed by an apple technician.