It sounds like your BM5 and BV9 are not recognizing each other.  I would check every connection and the option programming.  If this all look OK, I'd try a masterlink reset (turn off and unplug all ML devices, then plug them back in - plugging in the BV9 last).

I have the update and my system is working fine (but I do not have a BV9).

If you put the BM5 into service mode, you might look around on the harddrive for something that looks like the previous version of the software, but I would do that unless nothing else worked.  It would be very disappointing if B&O released and update that broke basic capabilities as you describe.  I hope it is something wrong (and easy to fix, like a cable connection) in your environment that was not noticed until the BM5 rebooted.

Stan

Thank you Stan,

the connecton was o.k. because sometimes there was the MENUE on the sreen of the BV9 but I couldn´t start from there. Now I have done a RECOVERY - all is running fine now - hope for a few time !😕🙂

Help .... now the BM 5 is updating itself  !! The problem is that after recovery the system is running with 5.00 correct. But now it makes a update itself up to 5.02 - and than I have the same problem - nothing works fine.

Can I stop the automatically updating ??