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Use these steps to support network settings on the LG G4.

APN & data settings

  1. From any home screen, tap Apps > Settings.
  2. If using Tab view, select the Networks tab.
  3. Under 'CONNECTIVITY,' tap More.
  4. Tap Mobile networks > Access Point Names.
  5. If available, tap the T-Mobile US APN (the bullet point fills with green). If not available, tap Menu > New APN.
  6. A separate APN must be added manually for the Reset to default option to appear.
  7. Verify and update the following settings for the Data APN:
    • Name: T-Mobile US LTE
    • APN: fast.t-mobile.com
    • Proxy: <Not set>
    • Port: <Not set>
    • Username: <Not set>
    • Password: <Not set>
    • Server: <Not set>
    • MMSC: http://mms.msg.eng.t-mobile.com/mms/wapenc
    • MMS proxy: <Not set>
    • MMS port: <Not set>
    • MMS protocol: WAP 2.0
    • MCC: 310
    • MNC: 260
    • Authentication type: <Not set>
    • APN type: <Not set> OR Internet+MMS
    • APN protocol: IPv4/IPv6
    • APN roaming protocol: IPv4
    • Enable/disable APN: <greyed out unless there are multiple APNs>
    • Bearer: Unspecified
  8. Tap  Menu > Save.
  9. Tap the desired APN profile you want to use. The bullet point fills with green next to the APN profile

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 any home screen, tap Apps > Settings
  2. If using Tab view, select the Networks tab.
  3. Under 'CONNECTIVITY,' tap More.
  4. Tap Mobile networks > Network operators > Search networks.
  5. If prompted, review the message and tap YES.
  6. The phone searches for networks. This takes several minutes.
  7. Tap to select the desired network. The phone registers you on that network.

Switch 2G / 4G

  1. From any home screen, tap Apps > Settings.
  2. If using Tab view, select the Networks tab.
  3. Under 'CONNECTIVITY,' tap More.
  4. Tap Mobile networks > Network mode.
  5. Tap one of the following desired band settings:
    • GSM/WCDMA/LTE auto
    • GSM/WCDMA auto
    • WCDMA only
    • GSM only

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 home screen, tap Apps > Settings.
  2. If using Tab view, select the Networks tab.
  3. Tap the Airplane mode switch to turn it on or off.
  4. If prompted, review the message and tap OK.

Turn on / off data roaming

  1. From any home screen, tap Apps > Settings.
  2. If using Tab view, select the Networks tab.
  3. Under 'CONNECTIVITY,' tap More.
  4. Tap Mobile networks.
  5. Tap to select or deselect the Data roaming checkbox.
  6. If prompted, review the message and tap YES.

Turn on / off mobile data

  1. From any home screen, tap Apps > Settings.
  2. If using Tab view, select the Networks tab.
  3. Tap the Mobile data switch to turn it on or off.

Turn on / off VoLTE

  1. From any home screen, tap Apps > Settings.
  2. If using Tab view, select the Networks tab
  3. Tap Call.
  4. Tap the VoLTE switch to turn it on or off.

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