Since I installed MacOS 12.0.1 my SDD via USB is not available. An other external HDD is still available. Both connected direct to the Mac. I can see the SDD in the harddrive-tool, but I can not start it there and receive a failure message. Reboot, plug out and in, complete new SW installation haven’t helped. Any Idea?
iMac Line (2012 and Later)
Same issues experienced in this forum... Unable to mount an external USB-C G Drive in Monterey.
It is a SanDisk SSD Plus 240GB. I took pictures of the Disk Utility and the error message.
I haven't an other device to check if the disc runs there.
What specific SSD?
Does it work when connected to another device?
Does it show in DIsk Utility?What is exact wording of error message?
I put the answers in the post.
I have the exact same issue.
USB SSD will not mounted
