In case I'm unable to fix the APM problem r197 is having on my C860, I think I'll give an older version of pdaXrom a try. As the last stable release for the C860, version 1.1.0beta1 is my most likely choice (alternate suggestions welcome).
Now I have already replaced the standard ROM flash utility with u-boot in order to install r197. The Quick Install Guide indicates that u-boot is the install method for version beta4 and later, but can it be used for earlier versions, too?
Can I follow the Quick Install instructions for "pdaXrom Current" and just run the beta1 updater.sh script instead of autoboot.sh? With what arguments?
Should I use the low-level updater (C+D+reboot) instead?