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Re: USB flash drive opens read only -- how to fix?

On Tue, Oct 01, 2019 at 08:03:50PM -0700, David Christensen wrote:


> >How could this drive be physically protected from writing to it when
> >there is no switch on the drive itself to unable (or release) such
> >physical protection?
> >
> >Regards, Ken
> I have read that some USB flash drives will revert to read-only mode
> when they detect an internal error [...]

Yep. Never forget -- there's a whole computer with its own OS in
your flash drive. That "write protect" (sometimes) available as a
physical switch is just communicated to your drivers via some
protocol over USB.

-- t

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