Cannot flash the brandnew MMU2S to 1.06 "Flashing failed: Error: open: Zugriff verweigert
Maybe some of you guys can help on this problem:
- updated the MK3S to the 3.8.0 without any problems
- updating the MMU2s (is now on 1.0.5) fails with this print:
I´d already gave a try with:
- previous slicer version
- different USB-cables (incl. checking the windows USB-driver, which seem to be correct)
- different computer (both in admin mode)
- factory reset
The communication between MK3S and MMU2S seem to work (at least filament is loading sometimes and if loaded, it prints)
just before you try to reflash, try pressing the reset button on the side of the mmu2, next to the usb port
thanks a lot for your reply - unfortunately, this does also not help.
I´ve tried various timings for the reset, but there is always the same reaction.
Maybe, I´ve just got a defective board...
have you been able to have a chat with support?
yes, finally I decided to ask the PRUSA support - and as always superb reaction, but still under investigation 🙂
Best wishes for a timely resolution!...
by the way, do you have a different micro USB cable that you could try?
and did you have the printer usb cable disconnected whilst you tried to program the MMU?