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The Powershot A2400IS was released on February 2012.

CHDK is available for the Powershot A2400IS with firmware 1.00C, 1.00D and 1.00E as ALPHA version from the Download page

Reviews and Specifications Edit

Digic IV image processor
DryOS operating system
Sensor: 16 million effective pixels, 1/2.3 CCD (6.17 x 4.55 mm)
Max image size: 4608 x 3456
5x optical zoom lens, 28-140mm (35mm equiv), F2.8 - F6.9
ISO 100/200/400/800/1600
Optical Image Stabilization
Fixed 2.7 inch LCD, 230,000 pixels
Video: H.264 MOV (QuickTime)
Video formats: 1280x720 @25 fps (HD), 640x480 @30 fps
Interfaces: Hi-speed USB, analog audio out (monaural), analog video out (NTSC/PAL) (video & audio cable not included)
Storage: SD/SDHC/SDXC
Power: Lithium-Ion NB-11L rechargeable
Weight (with battery): 126 g (4.41 oz)
Dimensions: 95 x 54 x 20 mm (3.74 x 2.13 x 0.79 inch)

The use of ver.req to determine your firmare version may not work. It is recommended you use the ACID utility to determine your firmware version.

#define LED_GREEN      0xC0220120 //LED on the back of the camera
#define LED_AF         0xC0223030 //Autofocus LED

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