Lens out, will not turn on.

Here's an article I put together for repairing lens covers. Good luck, and try to keep track of where each part goes.

so the lens cover is stuck..

carefully press the edges so the cover snaps open.

First try pressing the DISP or DISPLAY button on the back of your camera. If that didn't fix it... A stuck shutter is another common failure mode for digital cameras. The symptoms of a stuck or "sticky" shutter are very similar to CCD image sensor failure. The camera may take black pictures (for shutter stuck closed), or the pictures may be very bright and overexposed, sometimes with lines, especially when taken outdoors (for shutter stuck open). To confirm a stuck shutter, put the camera in any mode other than "Auto", and turn the flash OFF (you don't want to blind yourself for the next step). Next look down the lens and take a picture. You should see a tiny flicker in the center of the lens as the shutter opens and closes. If no movement is seen, then you likely have a stuck shutter. If so, please see this link for further info and a simple fix that may help.

Check your owner / user manual. I had similar problem and it was caused by "Mode" and "Flash" settings.

YES, BUT THAT IS A JOB THAT NEEDS TO BE DONE PROFESSIONALLY, DUE TO THE ALIGNMENT OF THE LENSES AND THE POWER DRIVE FEATURES. IF YOU GOOGLE CANON POWERSHOT A620 REPAIR SERVICE, YOU SHOULD BE ABLE TO GET A PRICE QUOTE BEFORE YOU SEND THE CAMERA IN FOR REPAIR. IS IT JUST THE COVER THAT NEEDS REPLACED OR THE LENS? THE COVER MIGHT JUST NEED TO BE CLEANED GOOD WITH AIR TO START WORKING AGAIN? WORTH A TRY. IF I CAN HELP MORE, REPLY TO:

ARCLIGHT1217

I cannot access my 'Date Stamp' Function. the display is dark on the screen any sugesstions.

Hey nanasandy,
This is a common error message for many Canon camera models. It is most often caused by the lens getting stuck by either damage to the lens mechanism, or something got stuck in the lens (i.e. sand). One thing you could try is blowing compressed air into the side of the lens to try and dislodge whatever is stuck in the lens mechanism. If this doesn't work I would have it looked at by an authorized service technician. I hope this helps!

Sincerely,
Allan
Go Ahead. Use Us.

Here are some simple things to try first for a camera that won't power on. They won't work for every case, but they're worth a try:
http://camerarepair.blogspot.com/2007/11/simple-fix-for-dead-cameras-that-wont.html

If the above didn't work, then consider the following:
http://camerarepair.blogspot.com/2007/12/fixing-lens-error-on-digital-camera.html

This blog post outlines repair procedures for stuck lens covers. An A400 is used as an example. But for the A620, you might want to extend your zoom all the way out before removing the camera's batteries. Also you'll be applying the ring loosening rubbing alcohol around the barrel's perimeter instead of the front as shown in the procedures.:

http://camerarepair.blogspot.com/2007/11/repair-of-stuck-lens-covers.html

Don't even try unless you know what you are doing - you can get a nasty belt off a charged flash capacitor (around 300volts) - the lens is more than likely clogged up with sand, this will wear the sliding tracks in the zoom very quickly and will render it useless.
You can buy new lens assemblies (Colchester Camera Repairs) but the cost will be high, around £80.00 just for the part.