A1 mini. Need Help. Problems with the engine?

Hello everyone. I have 2 A1 mini without AMS. and 4 A1 with AMS.
A1 is no more than 2 weeks and 200 hours of work. They have the same problem as in the video.
I don’t know if I can run the video.
In words: During printing, bearings jam or abnormal motor operation occurs. loud sound and grinding. The print head comes back with a heavy effort and the printer calibration is lost. I really need help!

I’m sorry, my English is very bad.

video of the problem

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Do all your printers make the same noise, or is it just the mini’s? The screen says cutter is stuck, is that so?
It sounds like the steppers are cogging - not enough current to overcome the resistance. Are they like it from new, or has it recently started?

Have the same problem but less extreme any help?

Hi i need help with my ams. When i start a print it keeps pulling filament in and out and then after saying that there i no more filament

Hi, my mini is making a bad noise - its coming too far forward - trying to go further than the rail. When levelling it was actually pushing the bed down. I did a factory reset and issue persists. How do I fix it?