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Got a problem with my Macbook Air. I wanted to factory reset it, so I ereased my data and wanted to reinstall MacOS. But my keys (zxcvbnm,.) stopped working. Now I can’t log in with my Apple ID and password. Run onboard diagnostics (restarted system with pressed D). There is no fault. What to do? Need help. Update (11/26/2020) I have run a diagnostic test. No MBA error. But selected keys (include left CMD) still do not work (se picture).
Time to inspect the keyboard cable damaged at the touchpad and/or replace the touchpad as the keyboard cable connection on it is bad (likely liquid damage) MacBook Air 13" Early 2015 Trackpad Replacement here’s the replacement part MacBook Air 13" (Mid 2013-2017) Trackpad