I do not remember if I posted here, but looking at some headers in the firmware (look just after GARMIN BITMAP 01), I know the logo is 800x480 and it is 32 bits. I think there is only one logo, but I am not 100% sure. I tried to program 1, 2 and 4 logos at different resolutions and formats. For the single logo, I tried different header formats as well from the different logo.bin I found. None worked.

BTW, the "Image Not Found" white square, I found where it is coming from in the firmware. Cute!

When I have a minute, I want to try changing the logo part number from D2080-00 to D2080-x0 where x can be 4, 5 or 6. I am curious to see if it will enable some things like in the 13xx and 14xx firmware. Remember I got a 3750 (not 3790).

Turbo