without wanting to sound too stupid (I've only had the phone one day) if I wanted to go back to gingerbread I can't just use the same way I used to go forwards i.e. an update.zip file (because it's not an upgrade) and also a factory reset via the bootloader will just remove all of my data and apps but will not change android version?
I'm not too fussed about losing data as I've got nothing new on it that isn't already backed up so if a reset would do this I'm fine.
Not sure if I'll invalidate my warranty if I follow the above.
Keep getting annoying messages about google + and I think the battery and connectivity to my network are worse since upgrading.
Thanks for the help,