@ Turbo

Yes, this is the logo of nuvi 6x0 series I posted above decreased by 2 bytes to be correct in size. (don't know is it compatible with other models) As I wrote I posted this corrected version because I figure out why the posted above logo showed fail in the system info on TCIII despite the fact that the end byte was correct. Don't know can GIR Editor or RGN Tolls understand and corrected if there is inaccuracy in the 1024-byte boundary but I have experimented with the logo of my C550, again ripped from a PouchX dump, made in the same way like the 600 series logo, and despite that it passed GIR Editor and RGN tool before I flashed it, it still showed fail in system info. So I need manualy decrese the size of the logo to pass the system info. Yeah, and after that I remeber the comment of TCIII and...etc. I think I used the latest versions of RGN Tool and GIR Editor. Sorry, I can't check that at the moment. Maybe GIR Editor or RGN Tool creates the correct 1024 bytes boundry if the logo is less in size but can't figure it out if it exceeds.