Rockbox Development > New Ports
Creative Zen Vision:M
saratoga:
--- Quote from: mcuelenaere on July 11, 2007, 12:08:03 PM ---
--- Quote from: iSE on July 11, 2007, 11:56:28 AM ---If, say, the firmware updater does indeed calculate the checksum of the nk.bin file and then upload it to the firmware, and the firmware is merely a series of commands designed to upload an inbuilt nk.bin file, can we not change the nk.bin file slightly, put it back into the firmware updater program, and then try that to upload it to the Zen?
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You could try, if you know how : )
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Didn't you try this on the previous page?
mcuelenaere:
--- Quote from: saratoga on July 11, 2007, 12:54:09 PM ---Didn't you try this on the previous page?
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You mean extracting nk.bin and putting it back into the .EXE?
mcuelenaere:
Ok, so I and iSE had a little conversation about the ZVM's firmware; if you want to see the logs:
http://gim.6te.net/ZVM/Chat.htm
Transience:
I don't know that this will work, but assuming the firmware updater .exe file uses the same checksum algorithm as the firmware itself, wouldn't it be possible to use the updater to generate the checksum we need, without having to know the algortihm?
mcuelenaere:
--- Quote from: Transience on July 12, 2007, 01:32:28 AM ---I don't know that this will work, but assuming the firmware updater .exe file uses the same checksum algorithm as the firmware itself, wouldn't it be possible to use the updater to generate the checksum we need, without having to know the algortihm?
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Yes, I was thinking the same way! But we are not sure that the .exe and the firmware itself contains the same algorithm; it would be kinda dumb of Creative to do so..
On the other hand, if it is true; it should be possible to generate a valid checksum, but don't ask me how :)
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