Rockbox Development > New Ports
Olympus m:robe MR-100
Bagder:
This mi4 decrypts fine with the same (default) key as the mi4 I host on my mi4 page.
roolku:
--- Quote from: Bagder on March 19, 2008, 04:26:59 AM ---This mi4 decrypts fine with the same (default) key as the mi4 I host on my mi4 page.
--- End quote ---
The problem seems to be the stored CRC32 checksum which is 73542bc3 according to the bootloader, whereas the calculated one is bcc9e837. Does your utility verify the checksum?
Bagder:
(it's not my tool but...)
Hm, no it doesn't seem to check that. After decryption it just checks that the "magic numbers" are present and correct...! Nice catch! I wonder if this is a reason to skip the crc check or if there's some flaw somewhere. The CRC is a plain CRC32 algorithm and it has worked on so many mi4 files already...
roolku:
scaramanga_goldengun,
do you know the history of the file? Is it the orignal that came with the unit or the result of an upgrade? Has it been 'hacked' in any way?
I have uploaded my OF file to http://www.roolku.pwp.blueyonder.co.uk/OF.mi4 if you want to give that a try - not sure though that there won't be a problem with the support files (fonts, database etc).
scaramanga_goldengun:
I upgraded it to the newest firmware, and in addition, changed the startup/charging/connected/etc. screens along with the original font. Does changing all of that stuff matter? It worked fine earlier, and it works fine with Rockbox.
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