My internal cable inside my pole is tangled, and won’t allow my pole to fully collapse. What do I do?

For a Klassic pole just remove the whole bottom module, disconnect the internal connector and carefully untangle the cable. Avalon pole don’t have this internal connector, so untangling is much more complicated, but this video describes how to untangle a “CC” Avalon boompole: watch this.
You can also always send in your boompole for a quick tune-up, service or repair.