Re: No wireless after updating packages in 12.04
rt2800pci_mcu_status: Error - MCU request failed, no response from hardware
Please see: https://bbs.archlinux.org/viewtopic.php?id=136607
The same error is mentioned and a patch is available. I suspect the patch has made it to the backports modules. Please do:
Reboot and let us see again:
sudo apt-get install linux-backports-modules-cw-3.3-precise-generic
"Oh, Ubuntu, you are my favorite Linux-based operating system" --Dr. Sheldon Cooper, Ph.D.