AT&T APN Settings OnePlus 9, OnePlus 9 Pro

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How to Setup and Configure (5G/4G/3G) AT&T APN Settings OnePlus 9, OnePlus 9 Pro  ? AT&T 5G APN Internet and MMS Settings unloked OnePlus 9, OnePlus 9 Pro  Full Details Below...... 

AT&T APN Settings OnePlus 9 Series - Step by Step Configuration : 

  • Open tap Settings.
  • Tap Wi-Fi & network > SIM & network > Access Point Names.
  • If available, tap the AT&T LTE (the bullet point fills with green). If not available, tap Add +. You will not be able to change the AT&T LTE APN settings
  • To reset your APN settings, tap Menu > Reset to default.
  • Verify and update the following settings for the Data APN

Name ATT
Proxy blank
Username blank
Password blank
Server blank
MMS Proxy 
MMS Port 80
MCC 310
MNC 410
Authentication type not set
APN Type default,supl
APN Protocol IPv4/vIPv6
APN Enable/disable  blank
Bearer unspecified
MVNO  none
Save this and then select this APN. You can now connect to internet after two minutes (if not working try restarting your your device and then connect)

How to turn 5G on/off on Android

Tap Settings > Connections > Mobile networks
Tap Network mode, then select desired setting:
5G/LTE/3G/2G (auto connect)
LTE/3G/2G (auto connect)
LTE/3G (auto connect)
2G only

AT&T 5G Lte APN SettingsVideo Tutorial

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