Can you manually heat up that hotend and then advance the feed while pushing in some new filament by hand? If you use a different color, you will be able to tell when the old color has been purged.

Update: I removed the PTFE tube and Bowden tube from the extruder. the Filament broke right before entering the extruder. I tried pushing more filament through the feeder end but I'm meeting resistance at the same depth I was before. Now I guess I have to work on disassembling the filament sensor.

This printer cost me $1600 dollars shipped and I haven't even printed anything with it yet. It took me maybe half an hour between unboxing the A1 mini and printing my first benchy, and the a1 was I think $500 all in, and that's including the AMS lite. Over all I haven't had the best unboxing experience with the core one.

I haven't even mentioned that Prusa decided to use 2 different types of screws to hold the top plastic cover on the chassis, meaning I need to keep track of them and their two different hex keys.

You can look through the assembly manual for the kit version, and find that the black 3d printed elbow that attaches the Bowden tube to the top of the hot end just slides right on. So you might need to undo a tie or two but it should be easy to pop that off and get the filament out.