Follow the steps in this guide to replace the logic board in your iPhone 6s Plus. [ … ] It's important to note that each iPhone's logic board and Touch ID fingerprint sensor are paired at the factory, so replacing the logic board will disable Touch ID ''unless'' you also install a replacement home button that has been properly paired to your new logic board. [ … ] '''You can also use this guide to replace the following parts:''' * [https://www.ifixit.com/Guide/iPhone+6s+Plus+Logic+Board+Replacement/51228#s113122| Audio Control Cable Bracket] * [https://www.ifixit.com/Guide/iPhone+6s+Plus+Logic+Board+Replacement/51228#s113763| Top Center Cell Antenna Bracket] * [https://www.ifixit.com/Guide/iPhone+6s+Plus+Logic+Board+Replacement/51228#s113069| NFC Bracket]