In browsing through some of these posts, I think some of you don't realize that using the Nokia Software Recovery Tool, you might get WP 8.1 with Cyan directly now depending on your phone and carrier. You may no longer need to rollback to 8.0. That is particularly true for the 1520. You will still lose all the data on the phone, similar to a hard reset. If were running developer preview Update 1/GDR1 and wish to return to it after flashing Cyan/8.1, do the following: connect WiFi, login to your Microsoft account but don't restore backup. After it finishes installing system apps, install the Preview for Developers app, launch it and log in and enable it. Then check for phone updates again. After this is completed, perform a hard reset, log in to your Microsoft account and assuming you backed up your apps and settings prior to flashing Cyan/8.1, you will now be able to restore from your backup you previously had with Update 1/GDR1 including the start screen layout.