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All replies
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Helpful answers
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Feb 22, 2016 12:17 PM in response to Hans K.by judysings,Hi Hans,
The resources below may provide some help with the issue you are having with the SD card slot on your iMac. Have you tried multiple cards to isolate the issue to the card slot and not the media?
If your SD card has pictures on it, try opening the Image Capture application on your Mac first, and then insert the SD card to see if it can be recognized.
Image Capture: Transfer images and other items from your device
You can use an external card reader until you can get your iMac into a local Apple Retail Store or Apple Authorized Service Provider.
About the SD and SDXC card slot
How do I insert media into the SD card slot?
Insert a card with the metal contacts facing down and pointing toward the computer. Do not force media into the SD card slot. This may damage the SD card slot.
I put the card in the slot, but it did not mount. What should I do?
Remove the card and insert it again. Sometimes, if you put the SD card into the slot too slowly, it may not mount properly.
Can I use SDIO (Secure Digital Input Output) cards?
No. Although SDIO cards are within the width and thickness specifications and should not damage the slot if inserted, they will not be recognized by the computer.
Can I use OS X to see the specifications for the interface hardware and media inserted in the SD card slot?
Yes. The System Profiler should provide information on the interface hardware and the media you inserted into the slot. To access the System Profiler, choose About This Mac from the Apple () menu. Click More Info, then select USB in the Hardware section. A list of USB devices should appear. Select Internal Memory Card Reader to access information about the interface hardware and the media inserted into the SD card slot.
Take care,
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Feb 22, 2016 4:44 PM in response to judysingsby Hans K.,Thanks for the reply Judysings
1. All USB and card reader info shows up on hardware listings while in use from a restart .
2. All my 32GB Sandisk cards act the same , clean ,dirty , soft insert , deep , slight removal .
3. Just no detection on photo shop adobe bridge, Finder , computer drives .... till restarted
4. My external CF card reader on firewire is trouble free
5. Someone posted dirty micro switches in the SD slot could cause this , Dead auto detection ?
Hardware listing for card reader
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Feb 23, 2016 12:28 PM in response to Hans K.by judysings,Hi Hans,
Due to the nature of your issue or question you may find more information by using another one of Apple's support resources - https://getsupport.apple.com/GetproductgroupList.action
Take care,

