Chosen Solution
I have a macbook air mid-2012 that has a failed logic board, and replacing it is probably more expensive than buying a used working mid2012 mba. Hence, I will not be fixing this one. My mother has a late 2010 Macbook air, but her trackpad doesn’t work properly (tracks movements, but cant click). Hence, I would like to take the trackpad from the mid-2012 MBA and put it into my mothers late 2010 MBA. Visually, they seem the same. These two are separate parts according to ifixit (MacBook Air 11" (Mid 2011-Mid 2012) Trackpad and MacBook Air 11" (Late 2010) Trackpad) Would the mid-2012 trackpad work on the late 2010 MBA?
The 2012 Compatability list 922-9971: MacBook Air 11.6" 1.3GHz Core i5 (A1465) - Mid 2013 MD711LL/A MD712LL/A Mid 2013 - New Mid 2013 - Used MacBook Air 11.6" 1.4GHz Core 2 Duo (A1370) - Late 2010 MC505LL/A MC506LL/A Late 2010 Late 2010 - USED MacBook Air 11.6" 1.4GHz Core i5 (A1465) - Early 2014 MD711LL/B MD712LL/B Mid 2013 - New Mid 2013 - Used MacBook Air 11.6" 1.6GHz Core 2 Duo (A1370) - Late 2010 MC505LL/A MC506LL/A Late 2010 Late 2010 - USED MacBook Air 11.6" 1.6GHz Core i5 (A1370) - Mid 2011 MC968LL/A MC969LL/A Mid 2011 Mid 2011 - USED MacBook Air 11.6" 1.6GHz Core i5 (A1465) - Early 2015 MJVM2LL/A MJVP2LL/A Mid 2013 - New Mid 2013 - Used MacBook Air 11.6" 1.7GHz Core i5 (A1465) - Mid 2012 MD223LL/A MD224LL/A Mid 2012 Mid 2012 - USED MacBook Air 11.6" 1.7GHz Core i7 (A1465) - Early 2014 MD711LL/B MD712LL/B Mid 2013 - New Mid 2013 - Used MacBook Air 11.6" 1.7GHz Core i7 (A1465) - Mid 2013 MD711LL/A MD712LL/A Mid 2013 - New Mid 2013 - Used MacBook Air 11.6" 1.8GHz Core i7 (A1370) - Mid 2011 MC968LL/A MC969LL/A Mid 2011 Mid 2011 - USED MacBook Air 11.6" 2.0GHz Core i7 (A1465) - Mid 2012 MD224LL/A MD223LL/A Mid 2012 Mid 2012 - USED MacBook Air 11.6" 2.2GHz Core i7 (A1465) - Early 2015 MJVM2LL/A MJVP2LL/A Mid 2013 - New Mid 2013 - Used
Before you go on replacing the trackpad, I would check the battery first. If the trackpad tracks movement but can’t click, it could be that the battery is swelling and pushing the trackpad up a little bit. That is a common problem in MacBooks, and seems more likely.