The Powershot A490.


CHDK is available as beta version for the Powershot A490 with firmware 1.00F from the Autobuild Server.

The <Alt> key for the A490 is the PLAY button (short / long press).


Technical Data[]

  • Digic III image processor
  • DryOS operating system

Firmware info[]

The ver.req file method could be used to gather firmware information about this camera model.

Ver.req First Page Data:

  • To get the fw version, CameraVersion or the ACID tool can be used to extract the fw version from an image file taken by the camera.

CHDK Specialties[]

This section describes special CHDK-related things...

  • The <Alt> key for the A490 is the PLAY button (short / long press)

For Developers[]

General info:[]

LED addresses[]

0xC0220088 Green state LED
0xC0220080 AF LED

Available firmware dumps[]


Download location for firmware dumps:
P&S firmware dumps mirror

Porting process & links[]

  • Please report issues with the A490 or ask development related questions here: A490 porting thread

History & News on A490:[]

  • (05-Jan-2010) Canon press release of new camera