[HELP] Macbook Air M1 (16Gb Ram) crashed after updating Big Sur 11.5.2

l0cpd Said:

"Macbook Air M1 (16Gb Ram) crashed after updating Big Sur 11.5.2: [...]Now my computer cannot turn on. Do you have any other suggestions to help me?[...]"

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Two Things:

A. Reinstall the macOS:

Go Here: How to Reinstall macOS from macOS Recovery - Apple Support

Important: First, Back Up your Mac:

Create a Time Machine backup of your Mac, so that you can have something to restore your Mac from, should anything go wrong with the reinstall. Take this as a learning experience, knowing to always create a backup of your Mac, prior to making any major changes to it (i.e. update installation)

B. As for Power:

Try a New Charger:

If it is charging from an external device, then use a new charger:

• Power & Cables - Mac Accessories - Apple - Select "Mac Compatibility" on the left
• Find the right power adapter and cable for your Mac notebook - Apple Support

A Few Links to Refer to Power:

• If your Mac doesn't turn on - Apple Support

• How to turn your Mac on or off - Apple Support

• About Mac notebook batteries - Apple Support

• Charge the MacBook Pro battery - Apple Support

• If your Mac battery won't charge - Apple Support