Run the Apple silicon diagnostic entry and preserve its result for service.
Backup readiness before service
Prepare a recoverable copy of accessible Mac files before hardware service.
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
Choose your existing backup method. Time Machine can make backups to compatible external storage; manually copying selected important files is another option.
Source: How to back up your Mac · Time Machine / Manually copy files
If using Time Machine, check the destination is yours and follow Apple’s linked setup guidance. Do not approve erasing a drive that contains the only copy of other files.
Source: How to back up your Mac · Time Machine / Manually copy files
Allow the backup or file copy to complete. Check its reported completion and open sample copied files from the destination without deleting the originals.
Source: How to back up your Mac · Time Machine / Manually copy files
Keep the backup separate from the laptop during service. Confirm provider requirements about data before handoff; this task does not erase or reset the Mac.
Source: How to back up your Mac · Time Machine / Manually copy files
Check the result
- Save the backup readiness result. A verified selected-file copy is narrower than a full-system backup; know what remains outside it.
- If accessible data cannot be backed up, discuss preservation with the provider before service or any reset.
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
- How to back up your Mac
Time Machine / Manually copy files · Checked 2026-10-04
Backup preparation and manual file copies
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.