原帖由： SD Card Issue

标题:

256GB SD card is read as 268GB and cannot mount?

文本:

Hi,

I have a Samsung EVOPlus '''256GB''' microSDXC card that I bought new, and formatted (Apple HFS on MacBook Pro 13” 2015 with MacOS 10.14.2) and was able to use for a few days  fine (although it seemed a touch slow).

Now my computer is  unable to mount the card (“This disk is not readable'“), although it shows up in Disk Utility as a greyed out internal physical volume with a capacity of '''268.44GB'''. I’ve tried First Aid, but it says there’s an “Invalid key length”.

The stuff (about 3GB worth) on here hasn’t been backed up anywhere else yet, so I really want to try and save it all.

Any advice or tips? I don’t even understand how the system suddenly decided the card gained an extra few gigs!?

Thanks for any help you can give,

H

设备:

Samsung Micro SD

状态:

open