Up till this point we have expected the millions of WP8.1 Developer Preview users to simply update to WP8.1 Final + Nokia Cyan without needing to make any special effort.
Now, according to a post on Nokia Conversations, it seems things may get a bit complicated.
At the bottom of the page Microsoft says:
If you are registered to Windows Phone Developer Preview Program, you might need to use the Nokia Software Recovery Tool to return your Lumia to a normal commercial software before downloading the Lumia Cyan update. More information about the tool can be found here.
The information is less than clear. Will all WP8.1 DP users have to downgrade (and potentially lose some data) or is there some way to know if you are affected.
Some are speculating that only bitlocker users are affected, but there is no proof either way.
The news is somewhat of a disappointment, and we hope Microsoft clarifies more over the next week.
Andrew Wigley, Developer Evangelist at Microsoft, has tweeted that only those who’s handsets are affected ie stuck in the reset loop or with the bitlocker problem, need to flash back to the old WP8 firmware. The update should still come to regular WP8.1 DP handsets when Microsoft resumes the roll-out without having to reflash. In short, unless you are having problems, continue waiting for the update notification.