!!
critical Msi
Error Code BOOT
Boot device is not detected or has failed. Indicated by EZ Debug LED.
? What Causes This
Storage device not properly connected, no bootable OS installed, or storage device failure.
✓ How to Fix It
- Power off and unplug the system.
- Check all SATA and M.2 connections are secure.
- Ensure boot drive contains a valid OS installation.
- Check boot order in BIOS (press Delete during POST).
- Try different storage device if available.
Source: page 42 of the official manual
From the manual
This error code appears in:
Msi B550-A Pro Motherboard