Bricked m1 macbook air

Your Macs firmware needs to be restored.

If your Mac starts up to an exclamation point in a circle - Apple Support

See this on how to revive or restore your firmware

If you don't have these items or you need help, contact Apple Support.

• The affected Mac, which is the Mac with Apple silicon or Mac with the Apple T2 Security Chip that you're reviving or restoring. Other Mac models don't apply.
• Another Mac, which you will use to revive or restore the affected Mac. This can be any Mac using macOS Sonoma or later. If this Mac is using macOS Ventura or macOS Monterey, revive or restore using Apple Configurator instead. 
• A USB-C to USB-C cable that supports both data and charging, such as the Apple USB-C Charge Cable included with some power adapters for Mac laptops. For reviving or restoring, this cable works with ports on Mac that accept a type USB-C connector: Thunderbolt 4, Thunderbolt / USB 4, Thunderbolt 3, or USB 3. Don't use a Thunderbolt 3 cable.

How to set up your computers to revive or restore

Follow these steps based on whether the affected Mac is a laptop computer or desktop computer, and whether it's a Mac with Apple silicon or a Mac with the Apple T2 Security Chip. You will use the USB-C cable to connect the two computers, then enter DFU (device firmware update) mode on the affected Mac.

Laptop computer

1. On the affected MacBook Pro or MacBook Air:

• • Plug the Mac into power.
  • Mac with Apple silicon: Facing the ports on the left side of the Mac, plug the USB-C cable into the leftmost USB-C port.
• Mac with T2 chip: Facing the ports on the left side of the Mac, plug the USB-C cable into the rightmost USB-C port.
• 
  
• Your port configuration might differ, but the left side of every model has a USB-C port farthest to the left (leftmost):
• 
  
  • And a USB-C port farthest to the right (rightmost):

1. On the other Mac:

• • Plug the Mac into power.
  • Plug the other end of the USB-C cable into any USB-C port.
  • Open a window in the Finder and make sure that it shows the sidebar.
  • Make sure that the Mac is connected to the internet.*

1. On the affected Mac, enter DFU mode:
   1. Press and hold the power button for up to 10 seconds, until the Mac turns off. (If your Mac has a Touch ID button, it's also the power button.)
2. Press and release the power button, then immediately press and hold all four of these together on the built-in keyboard:

• • • Power button
    • Shift ⇧ on the right side of the keyboard
    • Option ⌥ on the left side of the keyboard
    • Control ⌃ on the left side of the keyboard
    • Mac with Apple silicon: Keep holding all four keys for about 10 seconds, then release all keys except the power button. After about 3 seconds, release the power button.
• Mac with T2 chip: Keep holding all four keys for about 3 seconds, then release all keys.

1. Follow the steps to revive or restore

See this link for further reference

How to revive or restore Mac firmware - Apple Support

Fixing it will require these steps: How to revive or restore Mac firmware - Apple Support