T-Mobile decided to surprise its customers coming up with a list of unexpected updates. The first phone to get the update was the Dell Venue Pro, then it was followed by the HTC HD7. The update is going to be available not only for T-Mobile USA customers, but also for the international versions of the HTC HD7.

The update deals with both firmware and radio software of the handset. It shifts the firmware version from 2250.09.12001.531 to 2250.21.30102.531, while the radio version goes from 5.51.09.11a_22.31.50.09U to 5.65.09.25a_22.45.50.21U. Some of the analysts claim that these are the necessary updates that will help to get Mango later. The bad news is that we don’t know exactly what changes the update brings, so there’s no clue whether the updates are minor or not.
T-Mobile claims that the customers will get the typical note “There’s an update available” and can follow the required 10 steps afterwards. If some of you didn’t receive the message, there’s no need to worry. You can simply connect your device to Zune Desktop and check for updates in the Settings menu.
The approximated timing for the update is 36 minutes!








