I visited the below site & found the Cyan update is available for my Nokia Lumia 820.
I currently have 'RM-825 VAR EURO1 GB CV' (059R096) '3051.40000.1347.1006' installed on my
unlocked phone by myself. How can I find the product code for the latest version below? I wish to
use the Nokia care suite software to download the GB CV ROM. My phone was originally bought as
sim free from Amazon with a French product code (059R0Z2) so I can not use the Nokia Software
recover tool as it insists on trying to put it back to the French version (059R0Z2) even though
I successfully installed (059R096).
Lumia 820 Country variant 3051.50009.1424.0007 Available Available Available