CF card problem

Replace the cf card.

but the cf card and push the red button and turn the power remove your figer from the red button
and push the red button on time only.

http://www.usa.canon.com/cusa/support/consumer/digital_cameras/powershot_a_series/powershot_a70#ServiceAndSupport

Issue: Memory card Error
Solution: Try a different memory card and/or Reformat memory card PowerShot A70


Formatting a CF Card You should always format a new CF card or one from which you wish to erase all images and other data.
Please note that formatting a CF card erases all data, including protected images and other file types. Please check the contents of the CF card before formatting it.

1. Turn the power on.
   
   
2. Press the <MENU> button and select [ (Set up)] using or .
   
   
   
   
3. Select (Format) using or and press the <SET> button.
   
   
   
   
4. Select [OK] using or and press the <SET> button.
   
   
   
   
   • To cancel formatting instead, select [Cancel] and press the <SET> button.
   • The capacity of the CF card displayed after formatting will be less than the rated capacity of the CF card. This is not a malfunction of the CF card or camera.
   
   
   
5. Press the <MENU> button.

• If the camera does not work properly, the inserted CF card may be malfunctioning. Reformatting the CF card may solve the problem.
• When a non-Canon brand CF card is malfunctioning, reformatting it may solve the problem.
• CF cards formatted in another camera, computer or peripheral device may not operate correctly. When that happens, reformat the CF card with this camera.

Do both of these CF cards still function when you connect them to the computer?
Inspect the CF connector on the camera using a flashlight (torch). It's possible that one or more pins on the connector may have been damaged, somehow. If this is the case, the camera will need to be repaired.
Can you still operate the menus after the error message appears? If so, use the menus to reformat the card (see the manual for instructions).

Hi there, did you check the card itself? SD cards have a locking switch on the side. Move the switch from locked to unlocked. Put it back in the camera and see if that helps.

Rob

Not all CF cards are created equally, so yes, it could be your batch of cards. To determine if the error is CF related, and not anything else, try the following steps which are used to diagnose err 99's

To isolate the cause of the issue, do the following: -

1. Turn off the camera.
2. Remove the lens, battery, and CF card.
3. Allow the camera to sit without power for approximately 20 minutes.
4. Insert only a fully charged battery, and turn on the camera.
5. Depress the shutter button as you would to take a picture.


Does the “ERR 99′ message appear? If so, the camera may be faulty and requires a service. If it does not, then: -

1. Turn off the camera.
2. Insert the CF card.
3. Turn on the camera.
4. Format the CF card in the camera.
5. Depress the shutter button as you would to take a picture.


Does the “ERR 99′ message appear? If so, then the CF card is faulty. Try a different card. If the message does not appear: -

1. Turn off the camera.
2. Clean the gold contacts on the lens by GENTLY rubbing them with a pencil eraser or soft cloth. Keeping the camera face pointing down, also clean the gold contacts on the camera, being careful that you do not let any debris fall into the camera body.
3. Reattach your lens.
4. Turn on the camera.
5. Depress the shutter button as you would to take a picture.
If the “ERR 99′ message only appears when one particular lens is attached, then that lens should be examined by a service technician.
If you see the “ERR 99′ with a different Canon lens attached, then the camera is faulty and should be serviced.

You can put max 1GB cf card.

The Canon G1 was my first digital camera, years ago. When this camera was sold it came with a 16 Mb CF card. The manual refers to CF card sizes from 8 Mb up to 128 Mb and the number of photos you can take with each size card. However, I bought my camera together with a 1GB "micro drive" (tiny hard drive in a CF card format) and although it wasn't "supported" by Canon, it worked fine. I also used a regular 1GB CF card in it (after I lost the microdrive card). If you want to use a card larger than 1GB with this camera, test/borrow a card to make sure it works before you buy one. Camera stores always have a variety of cards (used to demonstrate the cameras they are selling) that you can put in your camera and test before you decide which card to buy.

Sadly the Micro Drive based newer players/mini external HDD's Etc. use a different kind of Micro Drive to a standard CF Micro Drive. 
This comes as a result of people buying Zen Micro's and striping them as a cheap way to obtain a Micro Drive.
Only Micro Drives and CF cards designed to be installed at point of manufacture will work in a device like this, a standard CF card or off the shelf Micro Drive will not.
Sorry.

According to Canon, Error code 02 means that "There is a problem with the CF card. Try any of the following: Remove and re-insert the CF card. Format the CF card, use a different CF card."

Are both CF cards the same brand? Sometimes some brands have conflicts with the camera, you might try using two different brands.

It may not be the card, did you try on the third attempt to remove the battery and put it back in? There may be a problem with the contact points where the CF card plugs into the camera, or in the transfer system itself.