It is still an issue. We have seen it on .003% of the boards shipped. The
issue can also be related to improper design of capes that violate the
power up sequence. It may be a while before that shows up as a failure.

Gerald


On Wed, Sep 24, 2014 at 3:05 PM, <[email protected]> wrote:

> Hello,
>
> I saw the following on the Beagle Bone wiki page...
>
> "Improper Power Down....All Revisions
>
> ... Based on the latest information we have gathered, this appears to be
> an instance where the PMIC does not power down the processor in the right
> order due to the violent removal of the power cables, either USB or DC. So,
> we are recommending that the power button be used to power off the board or
> by issuing the Halt command. After that you can remove the power cable. If
> everyone follows this process, we should see a decrease in these issues,
> but it will take a while for the results, either good or bad, to show up.
> This will also help prevent the contamination of the eMMC and the SD cards
> by allowing the kernel to shutdown properly before power is removed."
>
>
> I also saw in one post that Gerald noted this was thought to be an issue,
> but now has been dismissed.
>
>
> Can you confirm that this is still an issue or not.
>
>
> The reason that I ask is that we are having Beagle Bone Black failures in
> the field where they go dead and we are trying to nail down why.
>
>
> If this is still an issue would unplugging a power supply from the wall be
> considered "violent" removal of the power?
>
>
> Thanks,
>
>
> Jeremy
>
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