On 1/6/2014 6:44 AM, Volker A. Brandt wrote:
I never thought I would see this, but a user at a customer site has
actually managed to power off a 3plus DTU during a firmware update.
The DTU is now bricked. The green power light comes on, but nothing
else visible happens.
Does anyone have any idea? Failing that, how does one open up the
unit without breaking the case? ;-)
Opening the unit will not be helpful. When the firmware is corrupted
like this, it can be restored by connecting it to a network that
provides DHCP parameters that point to a firmware server. There is a
program that is part of the boot sectors called "ETFTP" (Emergency TFTP)
that is run when the firmware doesn't pass the signature check.
Kent
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