Transfer config from PMP450i with old software

Is there a tool to take a config that was in a 450I PMP with Version 16.1 and load into a new radio with 20.3.1.2. I have contacted tech support and i havent gotten any response back can you help with this.

The configuration is in JSON script. Have you simply tried downloading the config from an earlier radio under the Unit Settings tab and applying it to the new radio? I’m pretty sure it should work fine.