04-22-2021 12:02 AM
you will need to downgrade the pa-220 to 8.1 as the pa-500 does not support 9.0. download both the base image and 8.1.18 (so you don't run into early 8.1 bugs)
upgrade both devices to the latest content package (if TP license has expired on the pa-500 for example, grab the -apps- version so you only load the appications, this doesn't require a license)
then 'save named configuration' and export, then import, load and commit on the pa-220 and you should be good to go