SD card reader not working only not with El Cap.

The iMac does not recognize the SD card when inserted. Nothing in the Finder. If I leave the card in the slot and restart the iMac, it is recognized. This all started after the upgrade to El Capitan. Anyone?

Hello leiffromtonsberg,

Please ask for help in the communities of Support from Apple. Looks like you have problems reading from an SD card with your iMac. Here are the things I would check.

The first thing that you want to make sure that the data on your Mac is safe. You will need to use Time Machine to backup to an external hard drive. The recommendation is to use an external hard drive twice the size of your hard drive internal. Use this article to help make a backup: use Time Machine to back up or restore your Mac.

Then, you need to determine what you want to open or to display when you enter the SD card in. If you are looking for pictures to open when you insert the SD card, when you enter the SD card, open the Photos. On the import tab, there is a checkbox "Open pictures for this device". Make sure it is checked. If it is checked, uncheck it and re-check. It is necessary sometimes to get these settings reset.

If you are looking for only to have a pop up on the desktop image, please go to the Finder, then click the word Finder in the next to the Apple menu bar. Click on Preferences. Make sure that you check the tab general, and that the box for the external drives. If it is checked, uncheck it and re-check. Close the Finder preferences.

If you are still not able to find the SD card on the desktop or in the Photos, you will want to check if it shows up in disk utility. You can check by opening Finder > Applications > utilities > disk utility. Make sure the SD card is showing correctly in disk utility without having to restart the Mac.

If you still have the problem, with the insertion of the card and read by the Mac, look for more updates. There may be a new update driver or firmware required to get this working correctly with the new operating system. Use the App Store, updates, or contact the manufacturer of the SD card to see if they can provide updated information.

Thanks again and have a great rest of your day.

Tags: Mac OS & System Software

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