AMS filament odometer has no signal error

Has anyone gotten this Filament Odometer Sensor Error? My AMS keeps rolling the filament in and out, really scraping the filament each time (not normal). This happens about 8 times before I get an AMS error. It makes a clicking sound like a machine gun doing Morse code. It happens on all the roll slots. The Filament Odometer error has come up sometimes as well as the AMS error when I try and debug this problem(s).
I can heat the nozzles, move the axis’s just fine, no filament flow obviously. I really could use some good advice on what to do.


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Yes, I can do an 8-print with no problems.
Doing a few skedis boards 320x320.
But when you go to do it again or another, it comes up with what yours is saying, or both AMS slot 1 assist is stalled due to excessive resistance in the tube between AMS and the filament buffer.
Quite a lot now, and it’s not just slot 1; if I use another slot and do a print, it will do the same. So how many is it happening to?
If anyone can give advice for both of us, please…

Is the filament reaching the main extruder at the print head, and are both nozzles functioning the same way?

Dear, I had the same problem. I followed the HMS_0700-0200-0002-0002: AMS A The odometer has no signal. The odometer connector may have poor contact. | Bambu Lab Wiki but no success.
I opened a ticket and I am waiting the support response.

2 months passed. any response?