The IPD trackpad cable connects the trackpad and keyboard to the logic board, so a damaged trackpad cable may affect the functions of the trackpad and keyboard,don't need to change new device, just buy this 821-01063-01 trackpad touchpad flex cable and replace your damage Flex Cable , let your trackpad work again. Identifying Numbers: - APN: 821-01701 - Printed Part #:821-01701-A 821-01063-01 Package Including: 1x IPD trackpad flex cable for A1706 A1989 A2251 Compatibility: -Compatible with MacBook Pro 13" Touch Bar 2016 A1706 (EMC 3071) For MacBookPro13,2 Late 2016: MLH12LL/A (2.9 GHz Core i5) For MacBookPro13,2 Late 2016: MLH12LL/A (3.1 GHz Core i5) For MacBookPro13,2 Late 2016: MLH12LL/A (3.3 GHz Core i7) -Compatible with MacBook Pro 13" Touch Bar 2017 A1706 (EMC 3163) For MacBookPro14,2 Mid 2017: MPXV2LL/A (3.1 GHz Core i5) For MacBookPro14,2 Mid 2017: MPXV2LL/A (3.3 GHz Core i5) For MacBookPro14,2 Mid 2017: MPXV2LL/A (3.5 GHz Core i7) -Compatible with MacBook Pro 13" Touch Bar 2018 A1989 (EMC 3214) For MacBookPro15,2 Mid 2018: MR9Q2LL/A or MR9U2LL/A (2.3 GHz Core i5) For MacBookPro15,2 Mid 2018: MR9R2LL/A or MR9V2LL/A (2.3 GHz Core i5) For MacBookPro15,2 Mid 2018: BTO/CTO (2.7 GHz Core i7) -Compatible with MacBook Pro 13" Touch Bar 2019 A1989 (EMC 3358) For MacBookPro15,2 Mid 2019: MV962LL/A or MV972LL/A (2.4 GHz Core i5) For MacBookPro15,2 Mid 2019: MV992LL/A or MV9A2LL/A (2.4 GHz Core i5) For MacBookPro15,2 Mid 2019: MV982LL/A (2.8 GHz Core i7) -Compatible with MacBook Pro 13-inch Four Thunderbolt 3 ports 2020 A2251 (EMC 3348) For MacBookPro16,2 4 TB 3 2020: MWP72LL/A or MWP82LL/A (Silver, 2.0 GHz Core i5) MacBookPro16,2 4 TB 3 2020: MWP42LL/A or MWP52LL/A (Space Gray, 2.0 GHz Core i5) MacBookPro16,2 4 TB 3 2020: BTO (2.3 GHz Core i7) -Both of theEach 821-01701-A IPD Trackpad Keyboard Flex Cable is tested before shipping. Identifying Numbers: PPN: 821-01063-01, 821-01701. Compatible with MacBook Pro 13" Retina (Touch Bar, Late 2016-2020) A1706, A1989 and A2251:MacBookPro13,2 Late 2016:(MLH12LL/A),MacBookPro14,2 Mid 2017:(MPXV2LL/A),MacBookPro15,2 Mid 2018:(MR9Q2LL/A,MR9U2LL/A,MR9R2LL/A,MR9V2LL/A or BTO/CTO),MacBookPro15,2 Mid 2019: (MV962LL/A,MV972LL/A,MV992LL/A,MV9A2LL/A or MV982LL/A), MacBookPro16,2 2020:(MWP72LL/A or BTO/CTO). The A1706 trackpad cable connects the trackpad and keyboard to the logic board, Installation is easy but do see some online videos to ensure you dont damage it. If the trackpad touchpad ribbon flex cable in your laptop is damaged or defective and not working properly, this 821-01063-01 touchpad flex cableis the perfect solution to your trackpad not working problem.