With a steady hand, Elias connected his SPI programmer to the flash chip on the motherboard. He clicked 'Write.' The progress bar crawled with agonizing slowness. One mistake here would turn his laptop into a very expensive paperweight. 100%. Success.
This specific size works across ThinkPad, IdeaPad, and Legion product lines. Why Use a Patched Logo?
Many Lenovo laptops/desktops store the OEM boot logo as a inside a protected BIOS region. The official flashing tools reject modified logos due to checksum or signature mismatches. Users want to personalize the boot screen without bricking the system.
"A custom startup image was found. Do you want to apply it?"
: Move your LOGO.BMP (or LOGO.JPG / LOGO.GIF ) into the extracted BIOS folder (e.g., C:\DRIVERS\FLASH\[Version] ). Flash the Logo : lenovo oem logo bmp 120x120 patched
Run the flash command with the logo parameter. Depending on the generation, the command varies: Modern ThinkPads: WINFLASH64.exe /logo:LOGO.BMP Older systems: Flash64.cmd /logo LOGO.BMP
: "Patched" implies the file or system has been modified to bypass default settings. This might involve using a third-party tool like the Lenovo UEFI Boot Logo Changer to inject the logo into the UEFI firmware or editing the Windows registry to force the image's display.
[Original BIOS ROM] ──> [Extract Capsule via UEFITool] ──> [Locate Logo GUID] │ [Patched Boot Screen] <── [Flash Patched ROM] <── [Replace Raw BMP (120x120)]
for specific patched/legacy versions, though standard ThinkPad tools sometimes support up to 640x480 (16-color) or larger for modern UEFI systems. Colour Depth With a steady hand, Elias connected his SPI
To create a proper text for your patched 120x120 Lenovo OEM logo, it's important to differentiate between a BIOS/UEFI boot logo Windows System Information logo
Often, the "patched" version is actually a repaired bitmap that has been hex-edited to ensure it fits perfectly within the allocated binary space in the firmware partition. Technical Specifications for a Valid Lenovo Logo
For those who succeed, the reward is a quiet, pride-filled moment each time you power on your Lenovo—seeing your own creation appear before the OS even loads. That, in the world of PC modding, is pure satisfaction.
: Suspend BitLocker encryption in Windows before applying any BIOS patch, as changing firmware signatures can trigger recovery mode. Why Use a Patched Logo
16-color or 256-color Windows Bitmap (.BMP) is the most compatible choice for legacy and modern Lenovo UEFI/BIOS. Installation Write-Up (Windows Method)
The BIOS expects a 8-bit (256-color) palette, but you provided 24-bit. Fix: Convert to 8-bit indexed BMP. Ensure the palette has black (#000000) at index 0.
Bitmap ( .bmp ) is the lingua franca of low-level system customization. While you might use JPEGs for photos, the BIOS and Windows kernel prefer the uncompressed reliability of the BMP format to avoid parsing errors or display corruption. Tools like LogoDiy and the official Lenovo BIOS updaters specifically instruct users to use .bmp if .jpg files saved with certain software (like Photoshop) cause the logo to appear corrupted or fail to load.
Here is a breakdown of the technical components involved: