How to disable 3G on your Samsung Omnia W

1. Go into the phone dial mode.
2. Type: ##3282#
3. If the screen does not change to “field test”, tap the dial button.
4. On the next screen which opens up, pop up the settings options from the bottom of the screen via the … button.
5. Tap settings
6. In the Network type, select 2G only
7. Hit the back arrow and go to your home screen.
8. Your phone will now work on the 2G network and consume lesser battery.

Hope this helps someone.