A2000 IS dump - page 2 - Firmware Dumping - CHDK Forum
« previous next »
Pages: 1 [2] 3 4   Go Down

A2000 IS dump

  • 39 Replies
  • 21882 Views
*

Offline whim

  • ******
  • 2046
  • A495/590/620/630 ixus70/115/220/230/300/870 S95
Re: A2000 IS dump
« Reply #10 on: 13 / December / 2008, 14:05:20 »
Advertisements
I believe you  :D

FYI: In the mean time i rechecked dumping on an ixus 870 is, which also normally starts up in rec mode,
but has a 'play' button to start up in play mode.

result: start up (or try to) with PLAY button, 'regular' NewDryOS udump card: empty, zeroes only.

           start up with regular on/off button,  'regular' NewDryOS udump card: good dump.
                                                                     15K and 17K mods worked as well, the others -> zeroes only.

wim

Logged
*

Offline fe50

  • ******
  • 3147
  • IXUS50 & 860, SX10 Star WARs-Star RAWs
    • fe50
Re: A2000 IS dump
« Reply #11 on: 13 / December / 2008, 14:20:50 »
Quote from: whim on 13 / December / 2008, 14:05:20
FYI: In the mean time i rechecked dumping on an ixus 870 is, which also normally starts up in rec mode,
but has a 'play' button to start up in play mode.

result: start up (or try to) with PLAY button, 'regular' NewDryOS udump card: empty, zeroes only.

           start up with regular on/off button,  'regular' NewDryOS udump card: good dump.
Hi wim,
well - i think, that's it ! -> it's the same with the SX 10, dumps only when powerd on with the power button, play don't work...nice !
Logged
*

Offline whim

  • ******
  • 2046
  • A495/590/620/630 ixus70/115/220/230/300/870 S95
Re: A2000 IS dump
« Reply #12 on: 13 / December / 2008, 15:01:53 »
@fe50

Yes, but let's first see if this solves the problem ...

while at it, i'm now playing with the memory clearing params:

pretty amazing, but i870is still dumps OK if i change jeff's memory clearing statement

     for (i = 0x1c00; i<0x30000; i+=4)  *(int*)i=0;
to
     for (i = 0x3000; i<0x30000; i+=4)  *(int*)i=0;

if the power button vs. play button doesn't solve the dumping prob, i guess this is next ...

wim
Logged
*

Offline exander

  • *
  • 17
Re: A2000 IS dump
« Reply #13 on: 13 / December / 2008, 18:27:33 »
So, I am now out of town, I'll be back on Thursday. So, we'll see, if your suggestions makes any difference and I deeply hope they will. When I am back I have whole Christmas for dumping.

Thanks for your ideas.  :)
Logged
*

Offline whim

  • ******
  • 2046
  • A495/590/620/630 ixus70/115/220/230/300/870 S95
Re: A2000 IS dump
« Reply #14 on: 14 / December / 2008, 05:14:38 »
@exander

Here's 2 more experimental udumpers for you to try when you get back.

these use available 'play' in the memory clearing, and have been tested to
dump correctly on ixus 870 is.

have fun,

wim
Logged
*

Offline exander

  • *
  • 17
Re: A2000 IS dump
« Reply #15 on: 14 / December / 2008, 14:17:42 »
I am looking forward to try it.
Logged
*

Offline exander

  • *
  • 17
Re: A2000 IS dump
« Reply #16 on: 18 / December / 2008, 19:15:05 »
So, I am back home.

Tried again 15K, 17K. Tried for the first time the new two.

Not successfull.

Are there some newest sources of udumper and some info how to compile it? I downloaded udumper_2008 and WinARM package, but compiled file don't boot.
« Last Edit: 18 / December / 2008, 21:22:27 by exander »
Logged
*

Offline exander

  • *
  • 17
Re: A2000 IS dump
« Reply #17 on: 18 / December / 2008, 21:47:48 »
I've got a dump, don't know how it happened, but I have it.

I try to repeat.

-----------------------

I am without clue how it happened. I tried everything so I wanted to compile my own udumper, but it didn't want to boot. So I triet a fey different versions trying to figere out which version boot and which don't. In the process I just for fun opened dump file and it was there.  :o

-----------------------

http://camera.shy.cz/PowerShot_A2000IS_GM1.00B.dum
« Last Edit: 19 / December / 2008, 00:00:24 by exander »
Logged
*

Offline whim

  • ******
  • 2046
  • A495/590/620/630 ixus70/115/220/230/300/870 S95
Re: A2000 IS dump
« Reply #18 on: 19 / December / 2008, 04:05:29 »
Congrats !

Yeah, please try to repeat, i'd be interested to know which one did it ....

Should be 1 of:        -15K, -17K, 0x2000, 0x3000 (those 4 worked on NewDryOS cams i tried them on)

(the first 2 vary the zero padding, while the last 2 vary the memory clearing start address)

TIA,

wim

PS After dumping & re-inserting the card in your reader, don't forget to re-select the card
      in CardTricks before pressing 'Strings', CardTricks does not automatically detect card insertion/removal !
     
« Last Edit: 19 / December / 2008, 04:34:38 by whim »
Logged
*

Offline reyalp

  • ******
  • 14080
Re: A2000 IS dump
« Reply #19 on: 19 / December / 2008, 04:09:34 »
Dump looks fine, loads at FFC00000

DRYOS version 2.3, release #0031
Logged
Don't forget what the H stands for.
Pages: 1 [2] 3 4   Go Up
« previous next »
 

Related Topics