- #Macbook pro memory card slot not working mac os
- #Macbook pro memory card slot not working install
- #Macbook pro memory card slot not working update
- #Macbook pro memory card slot not working mac
#Macbook pro memory card slot not working install
Sandisk got back to me saying 'if the cards work in an external reader it's obviously not the card that's the problem', and Apple support got me to reset the various PRAM etc then run a fresh install of Catalina, all to no avail, then said next thing to try would be a complete erase and reinstall, and if that fails we know it's a 'hardware issue'. If anyone wants to see the problem in action, I recorded a sped-up 3 minute video demonstrating the problem. So I returned the 170mb/s cards on Amazon, got a next day delivery of 2x Lexar 128GB 633x - exact same problem - works in external reader but not on internal.īut it's not just these brand new cards - I have another 64GB Extreme Pro 95mb/s I bought back in 2018 that's never worked consistently but forgot to return in time - it's experiencing the exact same symptoms, and it looks IDENTICAL to my working 95mb/s card from 2017.Īll cards are exFAT, always formatted in camera, and it's only my old cards that can be read by the internal reader. Then you have to force eject every time even though it's no longer in use. I purchased 2x 64GB Extreme Pro 170mb/s cards (the updated model of the 95mb/s cards) and they work fine in my external reader, but when plugged into the internal reader, they always take 2-3 goes to show up, when they do, the finder crashes and images can't be dragged to desktop, it just gives an error -36 message. I have a strange scenario where my older SD cards - a 2017 Sandisk Extreme Pro 64GB 95mb/s and a 2016 Sandisk Extreme 64GB 90mb/s - work perfectly in my internal iMac 5k SD reader (late 2015 running Catalina), but none of the 4 brand new cards I bought this week work in the internal reader, but DO work in my external USB 3 reader. Just stumbled across this thread and thought I'd share my findings so far.
#Macbook pro memory card slot not working mac
When complete, your Mac will start up as usual. The reinstallation process will start shortly and roughly take 30 minutes.
#Macbook pro memory card slot not working mac os
Select the hard drive you’d like to reinstall mac OS Catalina to and click Install In the first window, select Reinstall macOS ➙ Continue Restart your Mac and then hold down ⌘ + R to activate Recovery Mode
The correct way to reinstall macOS Catalina is to use your Mac’s Recovery Mode: While not a totally fresh install (old apps could still gum up things) It is possible to reinstall the os from Catalina recovery mode: I think it just needs to start out on a clean fresh drive but I can only relate my experience. I did a 4K Final Cut Pro x project and Catalina preformed better then it ever has (I’ve used FC since version two).
#Macbook pro memory card slot not working update
I feel Catalina is a very different OS then past ones and some apps aren’t compatible so I didn’t do an update but a 100% clean install of Catalina, then reinstalled software using the disc images or downloaded again from the supplier (not copied apps off the backup) then moved folders and such over. Just tested both a Lexar and a Transcend and both read fine on a MacBook pro 2011.
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