Use tools like InsydeImageDecoder or Hex editors to verify that your patched BMP headers match standard Lenovo specifications before integration.
: Ensure that "Fast Boot" is disabled in your BIOS settings. Fast Boot occasionally skips loading the custom OEM splash screen to shave off startup milliseconds. Risk Disclaimer
Ensure "Do not write color space information" is checked. BIOS readers are very primitive and will reject files with modern metadata headers. Troubleshooting Common Issues lenovo oem logo bmp 120x120 patched
Place a 24-bit uncompressed BMP named LOGO1.BMP into the update directory for standard resolutions.
Look for a folder containing LOGO.BMP or instructions regarding user-defined logos. Use tools like InsydeImageDecoder or Hex editors to
The 120x120 pixel resolution is a legacy standard for Lenovo BIOS splash screens. While modern high-resolution displays can handle larger images, the BIOS environment often operates in a restricted VGA or VESA mode during the initial POST (Power-On Self-Test) phase. Using a 120x120 format ensures: Small file sizes prevent boot delays.
, the file size might be too large. Open the image in a paint program, save it again, and select "24-bit bitmap." Risk Disclaimer Ensure "Do not write color space
Standard BMP files do not support transparency. A "patched" image, often created with tools that understand OEM logo requirements, ensures that the image looks correct on a black background, rather than appearing as a black square with the logo inside.
Export the file as a BMP. In the advanced export settings, ensure "Do not write color space information" is checked, and flip the compatibility settings if available to use standard compressed formats. Methods for Patching the BIOS Logo
I can provide the specific commands and filenames required for your exact configuration. Share public link
: Extract the Lenovo BIOS utility executable to a temporary directory. Drop your patched 120x120 BMP directly into the folder containing the flash executable ( WinFlash.exe , wflash.exe , or Flash64.e_e ).