WM8505 Linux - changing the boot logo The boot logo is a standard BMP, up to 800x480 in 8-bit true colour. (Not 256-colour, 16-colour etc!) WARNING: typing the wrong mtd* number in the following command could brick your system. Double check! You can replace the logo from a running system by: dd if=my_logo.bmp of=/dev/mtdblock8 If you are running version <=1.0 of wm8505_linux, you may find the top part of the image is corrupted on boot. This happens if the image is bigger than 0x100000 (1mbyte), as the bootloader only reads the first 1mbyte of the image memory (and BMP files run from bottom to top). You can update the boot logocmd by booting the scriptcmd.logo-fix in this directory; name it as script/scriptcmd on a FAT-formatted SD card and boot it once.