Hi. I've just put a pendrive on my 2011 (ros 6.24)
It didn't recognize it, but it did after a reboot (weird).
Then, I've seen usb1 on Files.

But I cannot format or check it:
- under Stores I just see 0kb used / 0 kb free
- under Disks -> format drive -> I see "action not permitted" and a weird "device name"
- if I try to remove the above Store, it says "not implemented"

... What happens ???

Shut down the router. Remove flash. Boot the router by power cycle. Put the flash to the computer and remove all partitions from it. Shut down the router. Remove power. Put the flash to the router. Boot by power on. Format in disk menu. If does not work, make supout and send to support.