I’ve been having this problem with my K1 Max, everything seems to be working fine, but with ABS,ASA and Nylons the printer just stops working completely and throws the error:
key:2564
I’ve contacted creality support and they sent me a new hotend and an adaptor board, and for a week it stopped appearing, but yesterday i was printing some Sunlu PA6-CF and while doing a temp tower it just stopped working during the second section, it usually happens while having chamber temperatures of 40-50 Celsius, but it has happened once while printing PLA.
I don’t have any idea of what is causing it, because i can have 3 or 4 successful prints and then it happens again.