Fitted a mib2 head unit in my 2014 facelift yeti and now the Bluetooth only works one way, I can hear the conversation but I cannot talk back to the person on the other end. Also the clock doesn't work, it either reads 0.00 or 6.30 
Does anyone have any ideas as to what might be wrong or what the remedy might be please?

I have the same issue with my Yeti head unit, just appeared yesterday and from what I have read on another Yeti forum there have been several other owners with the same problem.  It reads 00:00 and flashes to 06:28 occasionally.  Time on the main driver display is correct, and I have not been doing any work at the head unit recently.

Just for info here is my System info screen.  Are there any firmware files available for download onto a SD card as it might be worth trying an upgrade?