updates:
* I did the reflashes. I used the "hard" way -- using gupdate.gcd and garmin's copy2card tool, as I could not get updater.exe to detect my gps -- to take this route, the gcd should contain both parts of the original fw, plus the logo.bin part. One thing to note is that the version number has to be changed to enable the flash (can be either smaller or larger). The good news is that the OEM logo is gone now. But there are problems:
-- the ones supplied by ddabcd277 contained corrupted images. (I think the images are corrupted, because the display is garbled, and when loading into GIR_Editor, it could see the dimensions of the image, but then suffers an overflow -- symptom consistent with corrupted image.)
-- I searched further and found logo.bin from 1377 and 2x5 (by the way my apologies -- apparently someone had asked similar questions a year ago; my search did not use all the right keywords), and the one for 2x5 were actually usable (I was even able to replace the image), but the size is 480x212 instead of 480x272, thus it leaves the lower part of the screen without any skin (default background, which unfortunately is white in full brightness).
-- GIR_Editor would not allow replacement of image with different size. So without a valid template I could not make anything 480x272 work.
* The change actually also seems to have changed available menu items. The rental car stuff is gone. I also removed the gmappoem.img from the device; I think it is the map for rental car returns, which was gone anyway. And what got me excited for a minute is that I now have the "change splash screen" option! But unfortunately, trying to use it to set a picture as splash (even with exact the same size) would freeze the device and requires a reset. So it is there but not usable. (I suspect it might have something to do with my installing a logo with mismatched size to begin with.)
* Thanks to nick_11, I was able to get into diagnostic menu. There I have the splash flagged as "Fail" and one FTL image as "Error"; I suppose these are due to the mismatched splash size? Other entries look fine.
So it seems that what I really need now is a logo.bin template with 480x272 image size ... and then everything would be perfect.
ddabcd277 -- could you give me a link to the original firmware that you used to extract the logos? I suspect maybe the file got messed up during upload/download; I wonder if I do the extraction locally things might be different. Thanks!
Sean
