X1C Firmware update 28. nov 2025

Bambu Lab Software Bambu Firmware
1

I updated my X1C to latest firmware version yesterday (think it was 01.11.00.00. but can’t see it any longer).

First symptom something was wrong was the machine no longer recognizing the Cool Plate Super Tack.
Second more severe error, was that extruded filament won’t stick to the build plate. I ran a full calibration and also bed levelling flow calibration before starting next print. Again, complete failure. (using Bambu Lab original PLA Basic filament).

The test lines won’t stick, if I ignore and press continue, then the nozzle starts extruding filament for the model, but nothing sticks to the build plate. It just drags along behind the nozzle, and quickly curls up and sticks to he nozzle as soon as it shifts direction.

All critical parameters seems to be unchanged in the slicer. I tried some simple PLA prints on the super tack plate, Bed temperature 45 degrees (which always work for this filament and plate combo), nozzle temperature 220 degrees. The filament extrudes fluidly and at normal rate, but it just refuses to adhere to the build plate.

I eventually rolled back to the previous firmware version 01.10.00.00, and everything is back to normal, including the printer recognizing the cool plate super tack again.
Am I the only one with this problem after updating to this version of the firmware? Can’t find any other posts about siomilar problems.

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2

Well, thanks for the heads-up! Glad you fixed it with a rollback.

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3

Same here. Had the same issues with the beta version.

4

I’ll be reverting back as well.

I’m getting the nozzle mis-match bug when trying to run files stored on my SD card.

5

I am attempting to revert two versions back now, as the update decided to make my AMS’s undetectable. Hoping this works, as last version did not fix it.

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6

same here as well, rolling back to previous version

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7

Same problems here after last update. Everything good again after rollback.

8

Exactly the same issue for me. Also, when laying down the first layer ( when it did stick ) it looked very much like it was extruding / not extruding in alternate stripes.
Rolling back to 1.10 fixed things.

9

Same here. For me it seems to be isolated to the Cool Plate Super Tack as other plates work fine.

10

Firmware 01.11.02.00 is released (the next iteration after the troublesome 01.11.00.00). The release notes addresses the exact issues I mentioned in my first post, so I installed it and crossed my fingers.

And… it works!
All issues I had are resolved.

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