I have two ender 3 max printers, one works great, one started freezing up during prints. I can sometimes get it restarted at the printing point by shutting off power (then the power loss resume kicks in), but this is not ideal, and it is happening more frequently. I reformatted the micro sd card as some of the forums suggest it may be a card issue, but still happens. I am trying it via usb now to see if that fixes the issue, then I will know it was a micro sd card issue. Anyone have good recommendations on new micro sd cards that work well with ender 3 max printers? I know there is a gig limit, but what about type of micro sd as it seems there are high speed, etc makes.
@stephen-g That may be the motherboard SD slot got something wrong, you need to replace a new motherboard.