What to do if X1C is sold to other Customer?

What to do if the X1C has a new Owner?
A) How reset and connecting to the new WLAN?
B) How register the New Customer to Bambu Lab?

Was muss der alte oder neue Besitzer tun, damit der X1C
A) im alten WLAN abgemeldet und im neuen angemeldet
B) bei Bambu Lab der neue Besitzer registriert ist

you can do a factory reset, it’s under settings > general > factory reset

But what do do, if the display is defect, no Menues there. Can one do the reset by Studio or Handy App?
(The X1C can still print, only over Studio use).

no, factory reset is only on the printer as far as I’m aware, you may need to consider purchasing the screen, it’s available in the store

We got a new Screen, but that does not work, as the old screen. Seems to be an other reason. A new cable is on the way.

good luck! hopefully that will do the trick