Upgrade Professional to Palm OS 2

[daebwae]

Hi everybody,

I need to update my Palm OS1 on the Palm Professional to Palm OS2 for some applications to run, that I've written for later Palm model. I checked the support pages of palm.com but they only have an update from 2.x to 2.7 ... if anybody could help, I'd really appreciate it.

Thanks in advance,
Stefan.

[Telyx]

The only way to upgrade that Pro is to find the original memory card (the Pilot 1000/5000 used OS 1, the Personal and Pro used OS 2 out of the box) or find an upgrade card. Those older devices didn't have Flash ROM. If your device has OS 1, the card is from a 1000 or 5000. The 1000 had 128K of RAM and the 5000 had 512K, and there was a 1MB OS 1.0 upgrade that would work in either.

The original Personal memory card had 512K of RAM and the Professional had 1MB; there was a Professional 1MB (OS 2)Upgrade card for the Personal also. If you're really lucky, you might run across the "Palm III" upgrade card, which worked in the Pilot 1000/5000/Palm Personal/Palm Pro and gave them OS 3 and infrared. All the 1000 and 5000 lacked was the backlight of the later devices.

I should add that TRG (later HandEra) had upgrade cards for those devices up to 8MB, if I remember right, but I don't think they came with infrared.