There tools like ChipGenius and another one out there. They are used by
german CT magazine and similar to identify those china-fakes with
horrendous GB amounts of space, but in real they are just 4GB sticks. I
searched a while now, but I cant find the other tool as I forgot it's
name...
One of those tools I've seen in those stick-tests was able to write
configuration data on the stick's controller.
Also it could be helpful to identify the controller chip by it's label.
Is it possible to open your stick? If so, is the label readable?
On 12/11/2018 02:09 PM, Bret Johnson wrote:
That's reminiscent of what I've seen with certain kinds of cell phones, where
the USB port can switch personalities and look like different kinds of devices
-- say a flash disk and a speaker/microphone. I've not seen anything before
that switches between two different kinds of flash drives, though.
This is called a USB gadget on host/OTG/device-controllers and is most
likely *not* implemented in a flash controller. Those flash controllers
in USB sticks support different kinds of flash and vendor string
programming (usually). Somehow this chip got puzzled and changed it's
settings. The integrated USB logic will not take a step in evolution to
more USB functionality ;)
It also sounds like it could be some sort of hardware security/encryption
feature that got turned on. The fact that your getting any response at all
makes it sound like it's probably not a completely broken connection.
Another possibility could be that could be related to the loose pin would be that there
is either not enough current reaching the flash drive (if the pin is one of the power
pins) so it is in some kind of "power saving" or maintenance mode, or there is
a short circuit or at least partial electromagnetic coupling between the loose pin and
one of the other pins that's that's keeping things from working properly.
Yeah this, is more what I think. The controller chip had lost it's
programmed contents due to faulty conditions. You never know what
current flows where in such a failure situation and what failures are
caused by this.
... but like Jim said, 1GB and showing errors. I wouldn't trust that
stick for more than copying non-critical files to another machine.
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