Error -69874, 0 in terminal while erasing USB.

[east85]

USB doesn't register with anything when I plug it in, did I kill it? The only query I can find relating to this is in chinese (I think), which isn't very helpful.

On 10.11.3

 

[KALLT]

Does it not show up in Disk Utility or with the Terminal command diskutil list?

 

[east85]

Does it not show up in Disk Utility or with the Terminal command diskutil list?

Didn't show up in either oddly. I managed to reformat it on Windows though.

 

[DeltaMac]

Does it now show up on your Mac?
If not, replace that flash drive.
IMHO, an unpredictable flash drive is not your friend!