brand new e3 v2 bricked!
I managed to print one test file then turned the machine off. Next time I turned it on screen was blank. managed to update firmware which got my screen back but it refused to auto home. Tried to print to see if that would produce any response - nothing. Downloaded that latest firmware from Creality website this produces a high pitched scream form the screen (which is blank again). Have no idea what to do next - help please