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Canon a400 my camera will not turn on. i have changed the batteries several times. when it last turned on - it would not take pictures - it just kept saying "Card locked". i changed the card several times with no luck.

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Card locked means that the tab on the edge of the SD card has been moved to the "locked" position. This prevents deleting or overwriting anything that is on the card, and also prevents any more images being added to the card. Move the little tab to the "unlocked" position.

Posted on Apr 17, 2008

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2 Answers

When I turn on my camera it asks for date and time but when I try to set it the camera shuts off


It's usually because you need to change the internal battery for a new one, very easily located next to the battery port, directly underneath pull it up and replace it with a new CR1220 and replace the batteries too just to be on the safe side

Aug 14, 2014 | Canon PowerShot A400 Digital Camera

1 Answer

I want best battery for canon power shotA400


You too? :) Great little camera - but woefully inadequate power-sourcing.

My PowerShot A400 now only runs on 2x Energizer 'Ultimate Lithium'
batteries at $12 a pair... and last no longer than three weeks or about 50 images.

Won't be buying one of these again. I love the camera - but changing the batteries every few days is just way too expensive. Poor design.

Sep 14, 2010 | Canon PowerShot A400 Digital Camera

2 Answers

How do you unlock the memory card


If your using an SD card you might need to slide the lever on the side of the actual memory card itself. The little lever is a hardware lock that prevents it to be written to or files to be deleted from it.

Apr 10, 2010 | Canon PowerShot A400 Digital Camera

1 Answer

Canon Power Shot A400 will only work with original Canon SD card


Make sure you are using an SD card and not an SDHC card. The SDHC protocol is newer than your camera, and your camera does not support it. SD cards have capacities up to 2 GB. Your camera should work properly with any SD or MMC card.

Apr 22, 2009 | Canon PowerShot A400 Digital Camera

1 Answer

Canon A400


Having using standard LR6 batteries in a Canon before you will only get 3 or 4 pics max before it drains the batteries. You really need high power AA's like 2300mAH+ rechargeables for any good performance or Lithium AA's

Aug 28, 2008 | Canon PowerShot A400 Digital Camera

1 Answer

Have to reset date every time I turn on camera.


You need to replace the date battery. It's a button-type battery (CR1220) which is in a holder near the regular batteries. After you pull the holder out, place the new battery into the holder with the negative side up, and slide it back into its slot. (Instructions are on page 120 of the manual if you have it.)

Jun 19, 2008 | Canon PowerShot A400 Digital Camera

1 Answer

Camera shuts off after turnning on


Are you still using alkaline batteries? If so, alkaline batteries just don't have the power for more than a few pics in a digital camera. Some may even have problems just powering startup of the camera. Performance may vary between brands and is also dependent on shelf life of the battery when bought.

For the most part, digital cameras should only be used with rechargeable NiMH batteries. Walmart sells these for around $7 for a package of four (about $15-19 for the batteries with charger). Keep in mind they'll save you big bucks in the long run over alkalines, AND they'll last for at least 100 pictures per charge (and probably many many more). You'll be very pleased with their performance, and may slap yourself for not buying them sooner. When at the store, look on the package for a power rating of at least 2500 mah.

Apr 04, 2008 | Canon PowerShot A400 Digital Camera

2 Answers

Canon S2 problems


Low battery power ? (rechargeables do not last forever).

Try a brand new set of batteries

Feb 06, 2008 | Canon PowerShot S2 IS Digital Camera

1 Answer

The camera won't turn on


Here are some simple things to try first for a camera that won't power on:
http://camerarepair.blogspot.com/2007/11/simple-fix-for-dead-cameras-that-wont.html
By the way, on the A400 the battery door switch is right below the SD card.

Nov 16, 2007 | Canon PowerShot A400 Digital Camera

1 Answer

Cyber-Shot DSC-S500


We had similiar problems with ours until we started making sure the camera was kept warm when it was shut off. For some reason, it and the batteries don't like the cold...we were able to extend the battery life if we kept it covered when we weren't using it.

May 10, 2007 | Sony Cyber-Shot DSC-S40 Digital Camera

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