: Modifying BIOS firmware is inherently risky. If the flash fails or the file is corrupted, the motherboard may become unbootable, requiring a hardware SPI programmer to recover.

: Update your BIOS using the manufacturer's standard flashing tool (e.g., M-Flash for MSI or EZ Flash for ASUS). Common Issues & Troubleshooting Flash Protection

: The tool works by locating the specific firmware volume and module responsible for storing the splash screen (often the "Logo" or "Bgrt" module) and replacing the existing bitmap or JPEG data with a new file.

While the Changelogo Tool is AMI-specific, similar utilities exist for competing firmware:

Incorrect bit depth. AMI firmware strictly requires 24-bit (RGB) or 32-bit (RGBA) BMP without compression. Solution: Re-save your image in MS Paint or GIMP as a 24-bit BMP . Rename the file to logo.bmp and try again.

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