How to Manually Configure APN Settings on Samsung Galaxy

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APN (Access Point Name) settings tell your Samsung Galaxy how to connect to your carrier's mobile data network. Incorrect or missing APN settings are a common cause of mobile data not working or MMS (picture messages) failing.

When Do You Need to Configure APN Manually?

• You inserted a new SIM card and mobile data doesn't work
• You're using a budget/MVNO carrier (Mint Mobile, Cricket, Visible, Google Fi)
• You traveled internationally and switched to a local SIM
• Mobile data stopped working after a software update
• MMS (picture messages) fails to send or receive

How to Access APN Settings

1. Go to Settings > Connections > Mobile networks.
2. Tap Access Point Names (APNs).
3. You'll see any pre-configured APNs or an empty list.

How to Add a New APN

1. Tap the + button (Add APN) in the top right.
2. Fill in the fields with your carrier's APN information (see examples below).
3. Tap the three-dot menu > Save.
4. Select the new APN by tapping the radio button next to it.
5. Restart your Galaxy.

Common APN Settings Examples

T-Mobile (US)

• Name: T-Mobile
• APN: fast.t-mobile.com
• MCC: 310, MNC: 260
• APN type: default,supl,mms

AT&T (US)

• Name: AT&T
• APN: phone
• MMSC: http://mmsc.mobile.att.net
• MMS Proxy: proxy.mobile.att.net
• MMS Port: 80
• APN type: default,supl,mms

Verizon (US)

• Name: Verizon
• APN: vzwinternet
• APN type: default,supl,dun

Always get the exact APN settings from your carrier's official support page for accuracy.

APN Fields Explained

Troubleshooting APN Issues

• Reset to default: Tap three-dot menu in APN list > Reset to default — restores carrier's bundled APN.
• Check for typos: APN settings are case-sensitive in some fields.
• Contact carrier: If uncertain of settings, call or chat with carrier support.