Chosen Solution
I bought 6s with cracked screen and cracked housing for 50 bucks, everything works fine but NFC doesn’t do anything. I replaced the screen and the battery, cleaned the speakers. And I wonder, if the housing is cracked (top right corner) will it pervent the NFC to work? I’ve heard the iPhone housing is the antenna for everything. Thanks in advance for answers. 10/27/2020 Edit: Replaced housing, interconnect link, and a few other parts, still nothing Update (11/04/2020) @tomchai Do you want me to take it apart further? Or is that sufficient to determine wheter I am stupid or not lol
Show us the pictures of the new housing and all the screw points on it, otherwise everyone is just guessing. NFC chip is likely encrypted and not replaceable, so we can only check the front end circuit hoping to find something.