USB 3 stopped working
Hi all,
I'm hitting a problem that I'm not able to fix; hope to find here an expert that can help me.
I have a PNY USB 3 flash drive (256 GB) that is not recognized as USB 3 on some of my machines.
I tested them on:
- my new iMac Retina 5K (OSX 10.10.1)
- my 17" MBP Late 2011 (OSX 10.7.5)
- my 13" MBA Late 2010 (OSX 10.10.1)
The USB worked until yesterday when I accidentally disconnected it without a safe ejection.
Something odd is happening!
If directly connected:
- it IS NOT recognized by my iMac and my MBP
- it IS recognized by my MBA
If connected through a USB 2 hub (with 4 USBs):
- it IS recognized by all my machines
I tried a lot of fixes:
- reboots
- reformatting
- reset pram
- reset smc
- ...
but nothing helped. Any idea on what's going on here?
Thanks in advance for any help.