Just received an iPhone 4S from Vodafone after breaking iPhone 4. Set up fine, connected to WiFi home hub etc. Then while connected via USB to iTunes, I was prompted by my MacBook to update to iOS 6. Did so - and problems. Sorry I haven't had time to trawl the threads to see if the answer is out there, I am trying to juggle kids on half term. The screens I am getting (with the actions in capitals): 1) iOS 6 - SLIDE TO UNLOCK 2) Update Completed. There are just a few more steps to follow and you're done. CONTINUE 3) Choose a Network: When I click on my usual BTHomeHub I get a pop up Unable to join the network Home Hub. DISMISS. It will join BTWiFi with FON - but I have no idea what that is, and whether I am somehow paying for it. I have tried a few things, e.g. Renew Lease etc If I go to NEXT on the Choose a Network page, I get: 4) To finish setting up iCloud enter the Apple ID password. However when I enter my password I get another pop up: Could not Sign In - The certificate for this server is invalid. You might be connecting to a server that is pretending to be "setup.icloud.com" which could put our confidential information at risk. OK. Does anyone know where I go from here? I was so pleased to get my new iPhone, but this morning has been a nightmare!