The update is pushed OTA (over the air), in stages
Nokia has just posted confirmations for the Amber update for Lumia 520, 620 and 720 in India. According to the Finnish company, the highly anticipated upgrade is now available for download for all three smartphones.As WMPoweruser points out, Nokia pushed the same software update for Lumia 920 and 820 devices several weeks ago and now Amber is available for all Lumia smartphones launched in India.
India is among the first countries to receive the said update, as lots of users from other countries are still waiting for Amber to arrive on their Lumia smartphones.
For those unfamiliar with Nokia Amber for Lumia devices, this update brings lots of improvements for camera and the phone’s overall performance. The upgrade also brings several new features that are not available before applying the update.