Ascend Archive
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Re: (ASCEND) P50 Failed on upgrade
>P50 failure on upgrade. POST loops.
>
>P50-1UBRI SN 6098779, switch on back, coaxial power connector,
>Part number 0700-0260-002 B REV AD
>Assembly 1300-0268-001 REV C
>
...
>
>POST runs over and over. I've tried jumping P6 near the CPU. That yields
>a few characters on the terminal screen, but nothing more.
...
Thanks to several who supplied clues to help recover. The unit is
running 6.0.9 now and seems to be working well.
Clues included:
Jumper P6 near the CPU.
Have the terminal set for 56K, NOT 9600. If you are using Hyperterminal,
set the parameters, SAVE THEM TO A FILE AND RESTART HT. My experience
was that the rate would not change on the fly, even though the number
at the botton of the Hyperterm window will change on the fly.
Those misleading parameter values have caused me a lot of grief.
I assumed that since the indicator changed, the rate had indeed
changed. That was a bad assumption!
Apply power
Use >EF
>DF
Upload new software. I started with 4.6Ci18.
After restart, the terminal panel comes up in "normal" mode at
9600 bps. Be sure the restart Hyperterminal at new comm settings.
I was then able to follow standard recommendations to upgrade to
5.0A and then 6.0.9. That was the last release I found for b.p50.
--
===========================================================================
Dave Stevens | | dave@stevens.com
STEVENS.COM, Inc. | | Office: 713-831-6846
Houston, TX, USA | http://www.stevens.com/dave | Portable: 713-419-0313
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