A2000 IS GM1.00C dumped - Firmware Dumping - CHDK Forum
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A2000 IS GM1.00C dumped

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Offline iax

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A2000 IS GM1.00C dumped
« on: 27 / July / 2009, 19:05:25 »
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Looks like I have a reproducible method to dump the a2000is GM1.00C.

The dump I got can be downloaded from here: PowerShot_A2000IS_GM1.00C.zip - 1.75MB

I haven't stripped the initial zeros, the first nonzero bytes start at B9A00.

My version of udumper is attached to this post. I basically use the udumper version by exander. Once compiled the bootdisk.bin I append 20k of zeroes and then I apply dancingbits. I use cardtricks and a 32M SD card.

The debug led never turns off, this suggests that the call to the write function never returns...however it seems that the dump is created successfully.

Right now I have not enough knowledge to check if the dump looks ok or not, hope some more skilled developers could check it :)
« Last Edit: 28 / July / 2009, 10:52:42 by iax »
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Offline iax

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Re: A2000 IS GM1.00C dumped
« Reply #1 on: 28 / July / 2009, 17:44:51 »
This version has been cleared from initial and final zeroes.

PowerShot_A2000IS_GM1.00C.zip - 1.74MB

It should be ok.

A binary compare with the GM1.00B dump show some differences in few memory areas.
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Offline fe50

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Re: A2000 IS GM1.00C dumped
« Reply #2 on: 29 / July / 2009, 02:21:49 »
Quote from: iax on 28 / July / 2009, 17:44:51
This version has been cleared from initial and final zeroes.
PowerShot_A2000IS_GM1.00C.zip - 1.74MB It should be ok. A binary compare with the GM1.00B dump show some differences in few memory areas.
Added to the dumps repository...
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