2013-02-14 17:56
2013-02-14 18:14
Refer THIS to know 'How to update' the phone .. Be aware that you will be able to update ONLY if the update is made available for your device because availability depends on Product Code / Region. Also, for Network locked devices, update is possible only after an approval from the Operator ...
2013-02-15 9:59
This is probably a better source for update instructions: http://www.nokia.com/global/support/software-updat
20.52 is the latest available SW version for the device - should be available pretty much globally.