Most "dead printer" posts I see from Ender and Bambu owners are the same three failures:

1. Heat soak, then push.

Cold pulls don't clear a packed nozzle if you yank at 90°C. Heat to print temp, wait 60 seconds, then pull. If the strand looks dirty, do it again. One clean pull beats five angry ones.

2. First layer is a bed problem, not a file problem.

If the skirt is spaghetti, stop the job. Clean the plate with dish soap (not IPA on PEI if oils are the issue). Re-run a one-square test. A "bad STL" almost never causes a failed first layer on a 20mm cube.

3. Don't keep reprinting the same clog.

If you've had two clogs in a week, the heat break gap is eating filament. That's a 15-minute mechanical fix, not a new hotend.

I sell print-ready household STLs and a separate 1-hour live repair slot for when the machine is actually down. Files stay files. Repair expires in a week. No lifetime access theater.

If you're mid-clog right now: photo of the nozzle + printer model. That's enough to know which of the three you're in.