: 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
for specific patched/legacy versions, though standard ThinkPad tools sometimes support up to 640x480 (16-color) or larger for modern UEFI systems. Colour Depth
Subreddits like r/thinkpad often have users sharing custom "lenovo oem logo bmp 120x120 patched" files. lenovo oem logo bmp 120x120 patched
That night, Alex discovered a forum post from 2012: “lenovo oem logo bmp 120x120 patched” —a hacked bootres.dll that allowed custom OEM logos even on UEFI systems. It was dangerous, unsigned, and perfect.
Custom firmware logos require exact formatting to prevent system errors or display corruption during the Power-On Self-Test (POST) phase. : Exactly 120 pixels wide by 120 pixels high. Format : Standard Bitmap (BMP). : Ensure that "Fast Boot" is disabled in your BIOS settings
In the early days of BIOS modification, users simply created a 24-bit Bitmap (BMP) image and injected it. However, modern Lenovo BIOS firmware (especially on ThinkCentre, ThinkStation, and modern IdeaCentre models) introduced strict validation checks.
: 24-bit RGB or 8-bit indexed color, depending on the specific motherboard generation. Colour Depth Subreddits like r/thinkpad often have users
| Level | What it Changes | Difficulty | Risk | | :--- | :--- | :--- | :--- | | | The logo in Windows System Properties | Simple | None | | Level 2: UEFI/BIOS Boot Logo | The logo shown immediately after you turn on the PC | Advanced | High |