With help of raandoom, I created a script what can easily change boot logo and background color directly from N900. Usage: logo.sh [ -h ] [ -l logo ] [ -c color ] -h: shows this help. -l: flashes an boot logo. File must be 16bit BMP. (Example of saving in GIMP) -c: set backgroud boot color. Color must be in framebuffer 16bit format. It consists of two bytes: RRRR RGGG GGGB BBBB, where RRRRR, GGGGGG, and BBBBB — values of red, green and blue colors. And these bytes must be swapped because of little-endianness. So, for example, if you want to code red color, it will be 1111100000000000 = 00F8, blue will be 1F00 and green will be E007. Result: Here the link: http://dl.dropbox.com/u/4105928/logo.sh It should support all of RX-51 revisions, but if something would go wrong, you can always use Cold Flashing. Thanks raandoom, Xlab and tz1.
wrong height, must be 72.