ELPH 340 HS 100a firmware dump - DryOS Development - CHDK Forum
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ELPH 340 HS 100a firmware dump

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Offline rkomar

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ELPH 340 HS 100a firmware dump
« on: 15 / July / 2014, 04:02:58 »
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Using the Universal Dumper script appended to the extend.m file, I got a 16MB dump of the firmware from my ELPH 340 HS camera.  The dump is available at: http://www3.telus.net/rkomar/PRIMARY.BIN.  ACID tells me that the firmware version is 100a.  CBDUMPER.LOG has the line "FF010000 dry" in it.

I got a bit of experience helping to test the A4000 port, and would like to help get the port to this model going, as well.  What previous port would be a good place to start from?
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Offline nafraf

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Re: ELPH 340 HS 100a firmware dump
« Reply #1 on: 15 / July / 2014, 08:46:13 »
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Offline Hardware_Hacker

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Re: ELPH 340 HS 100a firmware dump
« Reply #2 on: 15 / July / 2014, 09:21:22 »
Hi rkomar,

It's almost identical to the Ixus 265-100a

DumpF = Ixus265-100a

49065 same row(s)
42 Unimportant difference row(s)
273 Important  Ixus265-100a orphan row(s)
52 Important   Elph340-100a orphan row(s)

See attached
[selected]   AlphNumeric Differences.png
[selected]   Hexidecimal Differences.png

Not attached yet
[selected]   UnImportant Differences.png

"...What previous port would be a good place to start from?..." Sx510-100a is very close.

H-H
« Last Edit: 15 / July / 2014, 09:27:47 by Hardware_Hacker »
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Offline rkomar

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Re: ELPH 340 HS 100a firmware dump
« Reply #3 on: 15 / July / 2014, 12:03:58 »
Sorry everyone.  I looked through the DryOS Development threads to see if there was a thread for this model, but didn't see the Firmware Dumping section.  (head slap)
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Offline Hardware_Hacker

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Re: ELPH 340 HS 100a firmware dump
« Reply #4 on: 15 / July / 2014, 16:57:07 »
Quote from: rkomar on 15 / July / 2014, 12:03:58
Sorry everyone.  I looked through the DryOS Development threads to see if there was a thread for this model, but didn't see the Firmware Dumping section.  (head slap)
Continued from #2

Final attachment UnImportant Differences.png

Continued Here #21
 http://chdk.setepontos.com/index.php?topic=11597.msg114352#msg114352

srsa_4c Re: ELPH 340 (IXUS 265) « Reply #21 on: 11/July /2014

"...A partial boot.c is attached...."

H-H
« Last Edit: 15 / July / 2014, 17:02:36 by Hardware_Hacker »
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Online srsa_4c

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Re: ELPH 340 HS 100a firmware dump
« Reply #5 on: 15 / July / 2014, 17:22:02 »
Quote from: Hardware_Hacker on 15 / July / 2014, 09:21:22
It's almost identical to the Ixus 265-100a
From CHDK perspective they are identical. The differences are in camera-specific data areas (calibration, camera settings, etc.). Further binary comparison is therefore meaningless.
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