Turn off EV-DO and Save Battery Life

Turn off EV-DO and Save Battery Life...

1. From the home screen menu+0 (for the 8550 - Dial ##PROGRAM8550 (##77647268550) and press Send)
2. Type in 000000 Select "Network Select"
3. Select "Mode Preference"
4. Switch to 1x only

Press end (phone may power cycle)