The canon says "memory card

Check to see the largest capacity card that the camera will accept - if you are trying to use cards larger than this, I would expect this error.

There are several possible causes for "memory card locked", "memory card error", or "no memory card". Troubleshooting steps for this problem are listed here.

Its a very common problem with S400,S410 and some others.

As a case study, see the following error message on the Canon IXUS 130 when trying to view some photos previously stored in the memory card SDHC

"Memory Card Error"

Every single photo stored on the memory card becomes inaccessible after the above error message. In addition, no more photos can be stored on the memory card. In short, the card can not be read or written.

Cause:
The above error message that makes all the pictures inaccessible is mainly caused due to corruption of the memory card. Reasons why you are responsible for the above error message is virus infection, interrupted read / write operation, and human error.

Resolution:
The resolution for the above error message is the format of memory card into the camera. The process erases all data previously stored and allows you to save the new data. While the format is a good resolution for users who do not require the old data, it is fatal to users such as photographers, detective agencies, etc, to save critical data on your memory card. However, the formatted data recovery day is now an easy process. It is therefore necessary to use an advanced part of third parties. A tool for image recovery is readily available on the Internet by one click.

Data Recovery is an application of high-end recovery that recovers data from almost all formats SDHC Card, XD and MMC. The read-only photo recovery tool also allows you to restore data in the defined location. The software runs on Mac OS X and Windows.

Check this link for additional details: Simple Fixes for SD "Memory Card Locked" or "Memory Card Error"

Hope helps.

Turn off the camera and take off the memory card. There is a small tab on the upper right side of the card. Just adjust that tab upwards to unlock it. Then put it back and try again.

Hope this helps. Thank you for using FIxYa.

Hello melmustchin
Using a universal card reader ( costs 20 $ ) connected to your computer should solve your issue .
Best regards ,
fanaudi .

buy a new card..

Welcome to Fixya
Err 99 could mean several different things, such as... Memory Card, Lens or Lens contacts....

Here's what you can try:
Remove the memory card an enable "shooting with out memory card" and see if you still get the error. If it works your memory card is bad. Try another lens if you can. Clean the lens contacts with a pencil eraser (be careful not to get eraser dust in the camera body or in the lens). Worst case scenario is, Err 99 could be related to the shutter failing which would mean a trip to Canon.
Thank you

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You'd better change a new memory card that doesn't have a problem to check whether it is matter of Canon PowerShot A480,or use another well camera to check if it is error of your memory card.

I'm guessing you bought a new 4GB SDHC card. Although it looks exactly the same as a standard SD card, the format the card uses is very different. Unfortunately your camera was designed before the SDHC format came out. Sorry, but a SDHC card will not work with your camera.

You'll need to use standard SD cards (usually those 2GB or less). But if you really want to use a 4GB card, do a Google search for 4GB SD "non HC", with the non HC in quotes. Believe Transcend makes one.

In this case on the memory card itself u will see a small slide switch just slide that switch to the opposite direction and that will fix the problem