How do I remove filament from bricked printer?

Snapmaker J1/J1s
1

I have TPU and PETG in my J1s, and I accidentally bricked the firmware. How do I remove the filament from the printer if I can’t heat the nozzles?

Is cutting it the only way?

2

Yea pretty much, but I mean, do you really need that 1 cent worth of filament?

You can try to heat it with a soldering iron or heat gun but surely the electricity bill of energy spent heating up the bricked printer is higher then price of that little bit of filament you lose by cutting no?

3

You can try using a hot air gun to heat the area around the nozzle. If you cannot heat the nozzle, you can try using a cooling fan or compressed air to cool the stuck filament, as cooled filaments are generally easier to remove.