How to Fix Mobile Data Not Working on Samsung Galaxy

If mobile data on your Samsung Galaxy isn't working even though you have signal bars, the issue is usually APN settings, a carrier issue, or a software glitch. Here's how to fix it.

Step 1: Enable Mobile Data

Go to Settings → Connections → Data Usage and make sure Mobile Data is toggled on.

Step 2: Restart Your Phone

A simple restart refreshes the data connection and resolves most temporary data outages.

Step 3: Toggle Airplane Mode

Enable Airplane Mode for 30 seconds, then disable it to force a fresh network connection.

Step 4: Check Your Data Plan

Confirm with your carrier that you have an active data plan and haven't exceeded your monthly limit (data throttling can feel like no data).

Step 5: Check and Reset APN Settings

1. Go to Settings → Connections → Mobile Networks → Access Point Names (APN).
2. Tap the 3-dot menu → Reset to Default.
3. If that doesn't work, your carrier's website will list the correct APN settings to enter manually.

Step 6: Reset Network Settings

Go to Settings → General Management → Reset → Reset Network Settings — this resets mobile data, Wi-Fi, and Bluetooth settings.

Common Scenario: Data Works with Wi-Fi Off but Not On

You may have accidentally enabled "Wi-Fi only" data mode. Check Settings → Connections → Data Saver — disable it if on.

Dr.Fone Tip: Use Dr.Fone – System Repair to fix software-related Samsung Galaxy mobile data issues that persist after APN resets.