Firmware Failure

[dmps]

My M1 Mac firmware has failed.
Now the Mac does not go into recovery mode.

Gives a ! mark

How do I restore firmware on my MacBook Air fast?

Thanks in advance

 

[chabig]

You'll have to follow Apple's instructions and do it using a second Mac with Configurator.

Revive or restore an Intel-based Mac using Apple Configurator 2

In rare circumstances, Apple computers may become unresponsive and the chip’s firmware must be revived.

support.apple.com

 

[Significant1]

You'll have to follow Apple's instructions and do it using a second Mac with Configurator.

Revive or restore an Intel-based Mac using Apple Configurator 2

In rare circumstances, Apple computers may become unresponsive and the chip’s firmware must be revived.

support.apple.com

The Apple silicon version

Revive or restore a Mac with Apple silicon using Apple Configurator 2

In rare circumstances, Apple computers become unresponsive and the chip’s firmware must be revived or restored.

support.apple.com

 

[dmps]

how much time it takes to restore firmware?