Run the Apple silicon diagnostic entry and preserve its result for service.
Built-in keyboard input checks
Separate accessibility and input-source settings from repeatable key failure.
Planning estimate; excludes charging, cooling, backups and service. Not a measured repair time.
Confirm the exact model
Select a model confirmation to begin the checks. The full preparation guide is below.
Preparation guide
Test a few letters in a local text document. Record whether all keys fail or only specific keys; do not enter passwords as a test.
Source: Mac does not respond to key presses · Built-in keyboard / Unexpected results
Check the selected keyboard input source. An unexpected symbol may reflect the layout rather than hardware failure.
Source: Mac does not respond to key presses · Built-in keyboard / Unexpected results
Review Accessibility keyboard settings for Slow Keys and pointer-control settings for Mouse Keys, using the installed macOS labels. Preserve your previous choices before changing a setting.
Source: Mac does not respond to key presses · Built-in keyboard / Unexpected results
Retest the same keys. Remember Caps Lock and eject-style keys can have deliberate delay; persistent missing letters need support, not prying off keycaps.
Source: Mac does not respond to key presses · Built-in keyboard / Unexpected results
Check the result
- Save which setting explained the input. Restore accessibility choices you still need.
- Persistent missing or unexpected keys require Apple support, especially after damage. Do not remove keycaps in this task.
Stop conditions
- Stop using and charging a swollen or damaged battery. Do not open, compress, puncture, or attempt battery removal. Contact the manufacturer or a qualified service provider.
- Disconnect a damaged accessory if it is safe to do so. Do not open a mains power adapter.
- Save accessible data before restarting. Do not reset, erase, flash firmware, bypass a lock, or open the enclosure in this task.
Sources and model fit
- Mac does not respond to key presses
Built-in keyboard / Unexpected key results · Checked 2026-10-04
Input source and accessibility settings
Reference only. Original paraphrase; no copied images or manual pages. - Identify MacBook Air model
Find model / MacBook Air M1 2020 · Checked 2026-10-04
Model and chip confirmation
Reference only. Original paraphrase; no copied images or manual pages. - MacBook Air M1 2020 specifications
Charging and Expansion / Display Support · Checked 2026-10-04
USB-C charging, one native external display
Reference only. Original paraphrase; no copied images or manual pages. - Use Apple Diagnostics
Prepare / Apple silicon / Results · Checked 2026-10-04
Startup options, Command-D and reference codes
Reference only. Original paraphrase; no copied images or manual pages. - Mac battery will not charge
Check software / Check hardware · Checked 2026-10-04
Cable, power, temperature and Apple silicon restart
Reference only. Original paraphrase; no copied images or manual pages.
Original preparation workflow based on the linked documents. No hands-on device repair testing is claimed.
Related preparation
Separate charging hardware, load and battery settings on the M1 Air.
Check whether a repeatable startup symptom changes in Apple silicon safe mode.