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I got my new revision 1.20 calculator the other day, installed the software and USB driver on my Windows XP Compaq (USB 2.0), and connected the calculator. When I fired up the software, the ROM menu option is greyed out. Any ideas on how I can upgrade the ROM (without an SD card)?
Thanks.
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Look around at http://groups.google.com/groups?q=comp.sys.hp48. The answer's probably there, and fairly recent.
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Hello,
the ROM option will become available if you select the dedicated USB com port (something like "HP-4xG+"). Then, you can upgrade your calc. Make sure to select 115kbps (kind of slow otherwise).
Alain
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Thank you both. Yes, I am Alan Smitthee, famed movie director of most of the flicks on USA Netwrk in the 70s and 80s.