mobile

I have a Z3 compact on UK three network and the system update notification has come through telling me that it is available for download. But when I try and download it just hangs for a second or two and then says "could not download". Doesn't give a reason why the download won't even start. I have no access to a pc so can't update via that method, it's OTA or nothing for me at the moment.

Been so excited waiting for the update and now it's saying it's available it's driving me mad that I can't get it!

Any ideas anyone?