The camera will not turn on even with fresh batteries. Is there any combination of buttons i can press to reset it somehow?

CameraR

• 4738 Answers
• Posted on Dec 08, 2007

SOURCE: Memory card has corrupted image, but camera image is ok

This sounds like it might be a defective CCD imager. If so, Canon should fix this for you for free, including free shipping both ways. This is regardless of your camera's warranty status. Please check the following two links for more info:
http://camerarepair.blogspot.com/2007/11/canon-digital-cameras-showing-black.html
http://www.usa.canon.com/consumer/controller?act=PgComSmModDisplayAct&fcategoryid=225&modelid=13390&keycode=2112&id=29819
Applicable cameras include:
A40, A60, A70, A75, A80, A85, A95, A300, A310, S1 IS, S60, S200, S230, S330, S400, S410, S500, SD100, SD110, IXUS V2/300/400/430/500, IXY Digital 200a/300a/400/450/500

SOURCE: Camera Will not turn on

Pull the battery(s) out, pull the memory card out. With a compressed air can (for cleaning computers) blow out the battery compartment and very carefully clean out the memory card slot... don't bend any tabs or pins..
Also blow out any other openings around the batt compartment door/latch area.
reinstall batts and card.... any luck? Any error code on the screen?

SOURCE: Date/Time Resets

Hi, inside the battery compartment with the battery's out, there's a little flap with a watch battery inside replace and all will be fine..

Thanks
Mark

SOURCE: Change the batteries message keeps appearing even

This actually a really common problem among Canon point and shoot cameras. There are a couple of methods that have worked well for others.

1. Open the battery compartment and remove the batteries. Then take a regular wooden pencil and place the eraser end down onto the battery contacts. Rotate the pencil to remove any corrosion. Sometimes a lack of proper battery contact will result in the low battery indicator.

2. Take a toothpick and wedge the tip under the battery contact and break it off. This will put more pressure between battery and contacts.

You can also try installing 3rd party firmware at http://chdk.wikia.com/wiki/CHDK_in_Brief
This is a bit technical and will probably void your warranty, but might be worth the try.