Hi there, i already wrote this in an extra thread.. But forgot to mention some information, so i'll simply repost it here.. (Hope thats okay..)
I dumped the firmware from my PowerShot A410 with udumper:
powershot_a410.dum.gz - 1.47MBCanon Powershot A410
P-ID: 30F9
Firmware Ver: GM1.00F
Dumped the thing trice and compared the md5sums, all identical - the hexdump of the file looks okay, too.
Unfortunately i dont have a decompiler, so i dont really know how to proceed on my own.
(Hope this posting was understandable, my english isnt that good.. i'm from germany)