Difficulty with flashing an HP20b

[jwhsu]

(10-05-2015 12:20 AM)rprosperi Wrote:  

(10-04-2015 02:15 AM)jwhsu Wrote:  Was able to get MySamBa working over Parallels (took a little while), but was able to successfully flash a 20b into a 31S for my son.

It would be a nice gesture if you document here how you got it to work with Parallels, so when the next Mac guy that comes here searching how to load a 31S/34S on a Mac, your notes will help him/her get it done.

Just like the earlier posts that helped you, yours will help the next guy. Which is why these Forums are so useful.

No problem. These were the steps I used to flash flash the 20b:
1) Install a copy of Win XP pro via parallels.
2) Update XP to SP3 (Google "download XP service pack").
3) Install FTDI virtual com port drivers
4) Plug in USB to TTY cable.
5) Ignore auto install. Go to device manager and manually install driver. Should now recognize cable at COM#.
6) Download MySamba and appropriate binary from WP 34S Sourceforge site.
7) Flash calculator as per the Theremin World site.
8) Start using the calculator.

The hard part was realizing that I needed to update XP before it would allow me to install the drivers. Before updating, I could not install the drivers, even when I forced the system to look at the directory where the drivers were installed. Hope this helps out others trying to flash a calculator on a Mac.

Jack