HP48G Connectivity Method in 2022

[rprosperi]

Tom,

I've only ever had such (similar, not exact) problems with a single bad cable, is it possible yours is bad, or has loose/dirty contacts (on the 48 end more likely, as poor USB connection is typically audible from the Win10 machine). The tiny sockets in the cable are hard to clean but an old toothbrush and some alcohol and careful/patient poking into the sockets will do it. While you have cleaning stuff out, I'd also clean the metal pins on the 48 side, q-tips soaked in alcohol usually work best.

Another quite different approach for backup is to use a RAM card, it is much faster and more convenient, but of course is of no use if the machine is lost, etc. I've never had a machine crash affect the contents of a card's backup, and of course you should change the card batteries every couple years. NOTE that on a 48, when you change the batteries, you unintuitively must keep the 48 powered-ON while changeing batteries, as the 48 does not provide power to the cards when powered off.