Network & APN: Apple iPhone 4S

Use these steps to support network settings on the Apple iPhone 4S.

 

 

 

APN & data settings

 

iOS 9

You are unable to edit APN settings in iOS 9. To ensure you have the correct settings, reset your network settings.

 

iOS 8

  1. From the main menu, tap Settings > Cellular.
  2. Check that Cellular Data is turned on.
  3. Tap Cellular Data Network. If this setting does not appear on the device, the device is not unlocked. Refer customer to previous carrier.
  4. Enter the following information under the Cellular Data section:
    • APN: fast.t-mobile.com
    • Username: <Leave Blank>
    • Password: <Leave Blank>
  5. Enter the following information under the LTE Setup (Optional) section:
    • APN: <Leave Blank>
    • Username: <Leave Blank>
    • Password: <Leave Blank>
  6. Enter the following information under the MMS section.
  7. Enter the following information under the Personal Hotspot section:
    • APN: pcweb.tmobile.com
    • Username: <Leave Blank>
    • Password: <Leave Blank>
  8. Press the Home button to save the APN and exit to the main screen.
  9. Turn the device off and back on.

 

Manual network selection

The device detects and registers on wireless networks inside T-Mobile’s calling area, but roaming networks are usually restricted to T-Mobile SIM cards. You can manually select a network only in areas where T-Mobile does not own GSM spectrum.

 

  1. From the Home screen, tap Settings.
  2. Tap Carrier.
    • Note: If the Carrier option does not appear with a T-Mobile SIM card in the device, it may indicate the device was not correctly unlocked or jailbroken.
  3. Slide the Automatic slider to the off position to start scanning for networks.
  4. Select desired carrier.
  5. Press the Home button.

 

Switch 2G / 4G

  1. From any Home screen, tap Settings > Cellular > Cellular Data Options.
  2. Drag the Enable 3G/4G slider to enable or disable.

 

Turn on / off airplane mode

Airplane mode turns off wireless connections. This allows app and menu use, but prevents voice or Internet use.

 

  1. From any screen, slide your finger up from the bottom of the screen. If a small arrow appears, slide your finger up again.
    • Tap the Airplane Mode icon.

     

    Turn on / off data roaming

    1. From any Home screen, tap Settings > Cellular > Cellular Data Options.
    2. Drag the Data Roaming slider to OFF.

     

    Turn on / off mobile data

    1. From the main menu, tap Settings > Cellular.
    2. Tap Cellular Data to turn on or off.