HTC EVO operates on Sprint’s network.The process for programming an Android phone varies depending on whether you have a GSM or CDMA Android.The network technology depends on the cellular carrier. In the U.S., if a phone comes from AT&T or T-Mobile, it’s GSM. If it comes from another carrier, it’s CDMA. GSM Androids use a SIM card that stores the phone’s number and network information. Programming the phone is simply a matter of swapping the SIM cards. CDMA Androids store the programming in the phone’s memory. You program the phone by dialing a special programming number.
Programming GSM Androids
1.Turn off the Android phone by holding down the “Power” button and selecting “Power off” from the menu.
2.Remove the battery cover and battery. Most Android devices have a battery cover that slides toward the bottom edge of the device, and a battery that lifts from the sides or bottom edge. Consult your manual if the battery cover or battery will not come off.
3.Remove the old SIM card from the SIM card slot. Note the orientation of the SIM card as you remove it, and insert the SIM card with the new number the same way.
.4.Reinstall the battery and battery cover.
5.Turn the Android on. When it comes back on, it will read the new phone number from the SIM card.
Programming CDMA Androids
1.Open the dialer screen on your Android device.
2.Dial “*228” on the keypad and press the green phone button. Some Android phones use Send or Dial instead.
3.Listen to the voice prompts from your cellular carrier.
4.Select the option to program your phone. The system will play music for approximately a minute before informing you whether the programming process was successful. Don’t hang up until you hear the confirmation message.
You can also take your Android phone to a local store for programming. Check the phone book or your carrier’s website for a list of stores in your area.
You can only program a CDMA Android phone over the air if you are within the carrier’s coverage area and your phone has at least two bars of signal.