B.To flash a Full unlocked rom in Lumia 710:
Video Tutorial here:
http://www.youtube.com/watch?v=4tL_e...feature=relmfu
1.Download Rainbowmod Custom ROM :
http://www.mediafire.com/?7ch56tknj8vk0
2.Extract both the files in same folder (select both rar files and right click>extract here)
3.You will get a file new-os.nb
4.Open NSS PRO
5.Go To Flashing - >WP7 Tools
6.Power on Phone normally and connect it using USB cable.
7.Let Windows Find your phone with correct drivers.
8.On Bottom - Left choose Nokia USB Connectivity.
9.Click On DETECT
10.Select "Normal Mode", "OSBL Mode" from the dropdown boxes.
11.Now click on "OS File" and choose the ".NB" file you want to flash.
12.Click on "Write OS".
13.Wait till it flashes and then when it says done, unplug your device and remove the battery.
Now reinsert and switch on.
14.While entering LIVE ID during setup it asks for activation code.
Go here:
http://support.microsoft.com/contact...at?ws=support#
Chat with them and ask for activation code and enter it in the device and proceed.