hi there, did you manage to get your update???
I also received a notification in the message bar to update,it doesnt allow me to do this over wifi either,i connected to my pc and opened pc companion which picks up my arc and tells me update available but each time it fails ,it starts it prepares but then when it gets to box 3 update i keep getting installation error unable to install or start phone software update componants.
It is bugging the heck outta me now i have tried going direct to the sony website and clicking on the arc update but that just downloads pc companion again,even uninstalled and reinstalled it restarted phone removed battery etc but still no joy.
Everyone keeps recommending to use seus to update but that just ends up taking me back to the original download so i cant win
i was told it is only to sort out bugs and is not an update that you would notice making any difference