Hi. I have seen this topic discussed here, but have never seen a complete
explanation or fix. Sometimes, when I turn on my BN, the Braille display
is either jibberish or blank. Speech works just fine. Often, but not
always, if I turn speech off I get the message "Braille display is not
available", at which time I often, but not always find that a 1-2-3 reset
fixes the problem. Note, my rom-burned version is V4.01 build 1988.
Sometimes, the display will say something like "kain menu", i.e. dot four
is missing. Exercising the braille display works fine, e.g. no sticky
dot. After ending the exercising, the display still will say "kain
menu". Sometimes, only part of the display is jibberish, e.g. columns
right of 20 are ok, or columns on the left are ok with right columns
containing full cells. I have also noticed, though this may be random
rather than a correlated event, that the problem happens less often with
storage cards removed.
If it's hardware, why can it often be fixed with 1-2-3 resets? The problem
existed before, but has gotten worse since installing V5.1. Any ideas?
Thanks,
Doug Martin