Answer to "Home button extension cable replacement"According to Apple, the iphone 7 and +, and all later models. The home button ribbon can not be changed useless by a certified apple store engineer. The finger print and lock screen software are locked together so if you have damaged the ribbon of the home button, it will need calibrating with a special machine that only Apple has (They do not let other repairers have access to this machine). The only way is to use the original home button and ribbon off the phone it came with and to have someone bond the ribbon together. There are video’s of this being done on You Tube. The repairs are not guaranteed to work so it’s a bit hit and miss - good luck!