Chosen Solution

Hi there, Today I tried reassembling my iPhone 6S after I’d completely tore it down. Now it seems that there is a spare part which I don’t know where to place. The part says “160-AF” with an Apple Logo. I also noticed my home button is not working. Could this be the cause of this part? how do I fix it?

NFC bridging cable, required part for Apple Pay contactless transactions. Step 39 iPhone 6s Logic Board Replacement