[BRLTTY] Question: Brltty and Focus Fifth Generation

[rjaquiss at earthlink.net]

Hello:

     I am new to Raspberry Pi. I have a Raspberry Pi 5 running Brltty 6.5.
For a braille display, I am using a Focus Fifth generation connected using
USB. 
I installed both Brltty and Brltty-x11. My questions are:
1. Some of the buttons on the left front of the display seem to have no
affect. 
2. The braille keys are not recognized.
I do periodically run sudo apt update and sudo apt upgrade to keep the
software up to date.
Thank you for any suggestions.

Regards,
Robert