ATT released the Win 10 mobile update for Lumia 1520's.
Yesterday I upgraded my ATT 1520 to win 10 and this morning to the latest build. I was surprised how much like Win 10 on my laptop and this version is worlds better than the Beta I tried for an hour last fall. I've dprnt today learning the OS and I really like it.
I did find one thing that did not migrate at all. My blocked call list. I had 8 or 10 numbers in the list in Win 8.1 and noine saved in Win 10! I know its a long shot but is there any way to recover them? If not then maybe others make a copy of the numbers to maybe manually enter them after the upgrade.