Once you have your oemlogo.bmp , you need to tell Windows to display it.
When prompted for color depth, choose or 8-bit (256 colors) depending on what your specific BIOS modification tool requires. How to Use Your Lenovo Logo lenovo oem logo bmp 120x120 high quality
Tech enthusiast forums are goldmines for pre-formatted BIOS splash logos. Once you have your oemlogo
: The official Lenovo "Rainbow Red" is hex code #E60012 . Once you have your oemlogo.bmp