when i was using windows 8 on my nokia lumia 625 that time whenever i post photo, status on my facebook account its shows the title via windows phone ! but getting windows 8.1 cyan update i don't find this anymore ! thats disappointing! look at apple iphone users whenever they post photo on facebook its shows via ios ! that cool but windows user after getting cyan update don't show others that they 're using windows phone !! plz fix it soon !