[cisco-voip] 7970s dark after phoneload update

Ed Leatherman ealeatherman at gmail.com
Mon Mar 12 07:09:39 EST 2007


This happened to me also, but they came back up after a few minutes like
Robert is saying. I _almost_ unplugged it till I read this email and decided
to give it a few more minutes :)

On 3/7/07, Robert Kulagowski <bob at smalltime.com> wrote:
>
> > Anyone have a idea on why this happens on some phones on firmware
> > updates? I see this mostly on 7970s. Customer had done DST related
> > CCM updates, etc and when some of the phones took firmware update ,
> > most came back ok. Some are dark and not powered up, and unplugging
> > the ethernet and plugging it back in fixes them and they come back
> > and work fine.
>
> You may want to check whether they're really hung or just sitting there
> doing the update with the backlight turned off.
>
> When I did my mass update to 8.2(1), I thought I had bricked 30 phones
> until I noticed that if looked at the screen at an oblique angle, you
> could see that stuff was happening.
>
> Not sure why the backlight was off.
> _______________________________________________
>

-- 
Ed Leatherman
Senior Voice Engineer
West Virginia University
Telecommunications and Network Operations
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