It is TOTALLY unresponsive?
There are some cases (mine included) that it does not respond to scene changes or block state changes but it does on preset change. Once you switch a preset it start to work normally.
There are another cases that are similar to mine, but they don't have any sound coming from the Axe until they switch to another preset. I do have sound though.
I don't think that's caused because you didn't unplug the MFC when updating. Unpluggin it is to avoid The MFC send data while you're updtaing the Axe to prevent a corrupted FW update.
I have updated to Quantum twice, both with MFC unplugged and I have a similar problem... Again, not totally unresponsive, just to scene and block changes until I switch the preset is loaded on start.
This is the thread another user started in the MFC sub-forum.
http://forum.fractalaudio.com/mfc-d...sonding-after-quantum-update.html#post1249603
EDIT: My setup is Axe-FX II Mark I Quantum v1 and MFC Mark III latest Firmware.
I don't know if it's just an Axe-FX Mark I/II thing. What's your setup?