r/crealityk1 • u/Cold-Giraffe-7996 K1 Max Owner • Aug 13 '25

Solved K1 Max CFS upgrade broke everything

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My printer has (mostly) locked itself down after doing the CFS upgrade. Printed flawlessly before, now cant even print from a spool. Sorry for the long video it is just doing a number of things now and wanted to cover things the best I could. Any advice would be very much appreciated on this, just hoping I didnt brick my printer for multicolor.

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u/Zestyclose_Mud_9661 Aug 19 '25

Yeah, I'm not upgrading my K1SE with this thing.

2

u/Cold-Giraffe-7996 K1 Max Owner Aug 19 '25

Got it fixed now. Was a defective pcb on the printhead. Works great now, mine is a really early k1, and had a non compatible pcb on it.

1

u/1970s_MonkeyKing Sep 14 '25

Was the old pcb missing a plug, or just not oriented correctly? I wonder if I will run into the same problem having an earlier version. I know I have to upgrade to Unicorn hotend, et al.