Rockbox Ports are now being developed for various digital audio players!
I am extremely interested in this issue and would very much like to help if I can.
jhulst - im assuming that if we can find the file on the harddrive which is the firmware, it would be fairly simple to transfer something else in its place?
I'm wondering if it may be worth comparing the firmware update file for two completely different Creative Zen's.
Sorry, I read the first like 4 pages and the last one, i didnt know you already had a way to upload it. So i'm guessing the bootloader runs a CRC check, using the MD5 checksum? Or is it creative's own cryptochecksum lol.
So unless the bootloader performs a CRC check (which I don't see how thats possible with updating the firmware unless the update program changes the bootloader which would be really over the top) then hopefully it will be a simple matter of replacing that file.
A hash by using an algorithm then?
I was meaning by using it size and properties to calculate a checksum, by updating the file the checksum would change however.
So how to Creative get the firmware to pass then which otherways can't?
Would simply replacing the file on the HD cause an abort when switching it on then?
So once we have a new firmware we have to convince the player that its legit by getting it to pass the same checksum tests which the legit version would. I don't suppose we could just ring up Creative and ask?
I have already tried posting in the creative forums, no one seems to help, I'll try emailing and nagging creative until they give me a response worthwhile.
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