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powershot a495

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pcdude2143

powershot a495
« on: 01 / April / 2010, 21:08:46 »
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I wish for the Powershot A495 to be supported, and I've tried to take steps to help the developers (for I am not one), such as finding version information and such. The ver.req and vers.req do not work. Version.req does not either. I tried pressing funcset + down as recommended for another camera and nothing happened. I also tried using the NewDryOS dumper. It did freeze the camera, but the empty.dum was empty when I string-tested it. I also tried the DryOS dumper. I did not try VxWorks because the camera is a new model.

I also tried getting another CHDK for an extremely similar camera to work, the A480 firmware. The A480 has a virtually identical button layout, body, and processor, so I thought maybe it would work. I got a "Firm Update" option in the menu, but it immediately gave an error, probably because of some sort of checksum or model code built into the firmware file.

I was able to retrieve some info from the camera by using the CameraVersion tool:

camera: Unknown (0x2800000) version 100 D

Canon Firmware Version: Firmware Version 1.00
Canon Model Id: Unknown (0x2800000)
Firmware Revision: 1.00 rev 4.00
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Online reyalp

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Re: powershot a495
« Reply #1 on: 01 / April / 2010, 21:22:27 »
CHDK for a different camera (e.g. a480 on a495) will never work, even if they are very similar. Different firmware versions of the same camera frequently need their own ports.

a495 is a new camera, so it is expected that existing udumper will not work. Dumping will require either a modified udumper or using the blinking method.
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pcdude2143

Re: powershot a495
« Reply #2 on: 05 / April / 2010, 23:22:31 »
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« Last Edit: 04 / September / 2017, 14:25:46 by pcdude2143 »
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pcdude2143

Re: powershot a495
« Reply #3 on: 05 / April / 2010, 23:27:50 »
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« Last Edit: 04 / September / 2017, 14:25:03 by pcdude2143 »
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pcdude2143

Re: powershot a495
« Reply #4 on: 07 / April / 2010, 02:12:31 »
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« Last Edit: 04 / September / 2017, 14:25:29 by pcdude2143 »
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pcdude2143

Re: powershot a495
« Reply #5 on: 14 / April / 2010, 15:08:45 »
bump.
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Online reyalp

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Re: powershot a495
« Reply #6 on: 14 / April / 2010, 22:02:40 »
Quote from: pcdude2143 on 07 / April / 2010, 02:12:31
I finally found the blinker code after running around forever. The wiki is one massive jumble. So I tried to compile the LED address scanner. It comes up with a 1.5K file called main. I'm not sure what I'm supposed to be doing from this point.
It would help if you linked to the specific thing you were trying to use.
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Offline asm1989

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Re: powershot a495
« Reply #7 on: 15 / May / 2010, 04:47:36 »
pcdude2143 , whats your status on the blinking?
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pcdude2143

Re: powershot a495
« Reply #8 on: 27 / May / 2010, 20:31:40 »
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« Last Edit: 04 / September / 2017, 14:24:15 by pcdude2143 »
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