hi all,

i'm pretty new to the 3d printing world and don't know what to do... i just seemed to have fried the mainboard on the ender 3 v2.

i connected my PC via USB to the ender and boom - the printer restarted, beeped and i only got a black screen. a bit of smoke (and stink) came from the mainboard area.
i've now read that this is "common" for this printer when you use buck converters and connect the usb cable that has a 5V line. learned something for the next time and will cut the 5V line from the usb cable.

still, i have a fried mainboard at hand
- is there an easy fix? just a cheap part, maybe even just a fuse to replace?
- otherwise, i'd need to buy a new mainboard. does it make sense to buy a version 4.2.7 (now 4.2.2)?
- is is usual for this particular event that other parts got fried in the process? - maybe my screen, too?

maybe you can help me. i really want to print again, soon

thanks and cheers,
narf