Lenovo Oem Logo Bmp 120x120 Patched __exclusive__ -
Lenovo UEFI firmware allocates a highly restricted flash memory region for custom splash screens. Deviating from strict parameters will cause the BIOS update utility to reject the image or skip installation.
for specific patched/legacy versions, though standard ThinkPad tools sometimes support up to 640x480 (16-color) or larger for modern UEFI systems. Colour Depth
Understanding and Implementing a Patched 120x120 Lenovo OEM Logo BMP
do you want to use? (e.g., custom logo, image, or text) Lenovo OEMLOGO.BMP image request - Thinkpads Forum lenovo oem logo bmp 120x120 patched
If the system boots into Windows but shows a completely black screen during POST, the image color depth or resolution is incorrect. Re-verify that the file is an indexed BMP and exactly 120x120 pixels.
: Right-click the raw image section underneath the GUID, select Replace Body , and select your patched 120x120 BMP file.
: 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 Lenovo UEFI firmware allocates a highly restricted flash
Legacy and modern UEFI structures inside Lenovo ThinkPad, ThinkCentre, and IdeaPad machines allocate specific, rigid memory blocks for the startup logo.
: Run the BIOS update script or executable as an Administrator. The deployment software will detect the local BMP file, validate its size constraints, compress it into the new flash capsule image, and prompt a system reboot to write the data to the CMOS chip. Method 2: Manual UEFI Injection via UEFITool (Advanced)
Advanced users have developed tools that offer more control but come with increased risk. : Right-click the raw image section underneath the
Lenovo firmware is rigid regarding image specifications. If an image does not meet exact technical parameters, the BIOS update utility will reject it, or worse, the system may display a blank screen during boot. Standard Windows Bitmap (BMP) Dimensions: 120 x 120 pixels (standard small variant)
: 24-bit RGB or 8-bit indexed color, depending on the specific motherboard generation.
For enterprise systems like ThinkPads, Lenovo provides official utilities within their BIOS update packages. Users place the custom 120x120 BMP file into the flash utility folder, rename it according to the included text instructions (often LOGO.BMP ), and run the update executable to flash the new image safely. Method 2: UEFI Firmware Editing Tools