When trying to update my Xperia Play with PC Companion, it fails to install the drivers for my device. I plug it in, it tries up until it says a problem has occured installing the hardware. My screen looks like:
because stackexchange doesn't let me post images
I've tried it's recommended diagnostic advice, null.
edit: Just installed the update on another computer. It seems to work fine. If you don't have a spare, try a VM.