After Amber update , connect your
Lumia 920 via wi-fi
now click the wi-fi connection
select
EDIT option
Now turn
PROXY ON
In Server/URL - enter -
117.135.139.179
In Port - enter -
8888
Now scan the below QR code with bing search using the "eye" logo at the bottom of the search
it will give you the Windows Market link to download PRO CAM
click install
once downloading starts
Go back to your wi-fi connection and turn
PROXY OFF
and continus with download with wi-fi
Now PRO CAM is on your phone
Thats all, enjoy