I installed the "Preview for Developers" app on my Nokia 521. It is unlocked with a dev account. I go to "Settings->phone update," and I see that there is an update for my phone. But it says I need 10.00 MB of space to install it so my phone won't install the update. I really have 2 GB of free space so the message doesn't make sense. I can't get past this. Has anyone seen this? Do you know how to get past it?