Have a black screen, lens opens, but it seems like the light sensor isn't working. If you press the trigger, there is slow click and flash, but no picture.

So???
Is the shutter opening? Put it on slow shutter speed and wide aperture say 1 sec at f4 or wider and look down the lens as you take photo. At some point you should see the sensor as the aperture is nearly fully open. If not then it isn't allowing light to get to the sensor, but if that's all working ok (and I assume you've looked at the photos on a computer and checked they are on the card and the exif info is sensible and they are still completely black) then you have a faulty sensor or processor. Remove battery reinsert and go into menu and reset the camera settings. Report back so???

The A6XX series is prone to stuck shutter problems, particularly if the camera isn't used very often. Lens lubricating grease can coagulate on the shutter, immobilizing it. 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.

Sounds like the battery might be low which would cause the red flashing light and dark screen. Let it charge for a little bit then try turning it on again. If it still does it with the power supply plugged in, make sure there isn't a lens cover on it, and switch modes or try getting into the menu to see if you can get anything to come up. If that still doesn't work then it sounds like there might be a problem with the camera.

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, 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.

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, 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.

Simply right click on the track itself and select send to/DVD-RW or CR-RW depending on the type Compact disc drive you have. Then you will see a notification, "you files to be written to CD." Simply click on it or go to your Compact disc drive on My Computer and click “write these files to CD.” Then follow the screen instructions. IT is that simple. All you need to do is press and release the display button until the screen displays. Usually Canon Powershot cameras have 3 display modes:- colour, black & white, blank. Your camera is set to blank that is why you cannot see any image/screen displays no image. Just press and release the display button until the screen displays. That should do it.

This worked for me: I turned the ISO to 800 and set the flash to "auto" - even in quite bright light the flash still goes off so I'd definitely try this. To turn the image stabiliszer off, press the "unlock" button next to the shutter on the side of the phone.

hi.. I also had this problem with canon ixus 75. i took it to the service center and they just knocked its lens(lightly) when it was on ON mode, then suddenly the screen started working.
But he said that u should use it on regular basis for few days and if the problem occurs again. then we will have to change the sensor, I think he said sensor or something like that.

I had this same problem and fixed it today. I had a paper jam 3 days ago and after opening the back and removing the jammed paper, the red paper light continued to flash no matter what I did. But today, what I did fixed it.
I opened the outside back "door" on the printer. Inside that, there is a black panel with a warning "hot" label on it, and blue "buttons" that you can press to release the roller to un-jam paper that is caught. I carefully un-hooked that black panel and lowered it down just like I did to un-jam the paper. At this point, you will see in the center of this black panel, a small toothpick-like black sensor "stick" for lack of a better word. This "stick" is attached to some kind of rod that connects at the right side of the black panel. I gently moved the rod back and forth...it has about 1/8th of an inch movement left to right. and I re-positioned the black "stick" so that it lined up better with the inside of the printer. Then, I re-attached the black panel into place and shut the outside "back door" on the printer and viola! the red light was off and the green light was on. So I have to believe this whole problem is related to that little black "stick" thing and it must be some kind of sensor. that's all I can guess. By the way, we re-loaded the print driver before this and it didn't do any good. Hope this helps someone! --drw

An E18 error refers to a problem with the lens. Generally you receive this error if the lens is stuck, which often happens if you drop your camera while the lens is extended or if something like sand or dirt gets inside the lens barrel/gears. Your situation, however, sounds different since the lens seems to extend before giving the E18 error.

If the lens is fully extending before giving the E18 error, you most likely have a problem with the lens sensor located around the O-ring inside your lens barrel... either the sensor itself is damaged or the little plastic piece on the O-Ring that triggers the sensor is broken. If that's the case, there is nothing you can do yourself unless you feel like taking apart the entire camera and finding a replacement piece.

If the lens only comes out a little bit and is not fully extending before giving the E18 error, it sounds like something is making your lens get stuck. If you've recently been to the beach or a park where there is sand, try using a can of compressed air and blow it into the little gaps in the lens barrel... you may be able to blow the sand/dirt out, solving your problem. If the air doesn't work and you feel comfortable taking apart your camera, you can get to the gearbox and manually retract the lens by following my instructions below. Otherwise, I'd suggest a repair shop.

WARNING: TAKING APART YOUR CAMERA VOIDS THE WARRANTY AND CAN BE DANGEROUS! The capacitor that charges the flash can still hold enough voltage to give you a massive shock even when the battery has been removed for some time. Please only attempt to disassemble the camera if you feel comfortable doing so. I accept no liability for anything that happens should you follow my instructions below.

In order to open the camera you will need to remove six screws on the outer casing (2 where the wriststrap ties on, 2 on the opposite side, and 2 on the bottom). After unscrewing all 6 screws, pull the back and front casings off from the bottom out, as there is a clip-hinge on the top next to the shutter button that needs to disengage before you can fully remove the casing. Once the casing is removed, there is one screw holding in the flash apparatus, on the side. Remove it and carefully bend back the metal cage around the flash apparatus and pull it up. The flash will still be attached to the camera with a pair of wires (yellow and black) and a ribbon cable... leave those in place. Please be CAREFUL when handling the flash because the capacitor (the big black thing under the flash) can hold enough voltage to give you a severe shock even with the battery removed. Underneath where the flash was you will see a multi-tiered black piece of plastic... this is the gearbox cover. Remove the three screws from the cover and carefully lift the cover off the gearbox. Inside will be a motor shaft and 4 gears (2 white, 2 black). Remove the BIG black gear closest to the lens. Then temporarily replace the gearbox cover. With the big black gear removed, the lens should freely glide in and out if you push or pull on it. Do this several times in order to clean out any gunk that may have gotten into the grooves of the lens barrel. Then, open up the gearbox, replace the black gear, and screw the gearbox cover back on. Replace the flash into the metal cage and screw it back in. Finally, put the metal outer casing back on the camera and, before screwing it in, try to turn it on. Hopefully it will work again and you can screw everything back in. If not, your problem will require significantly more disassembly.