How To Fix Samsung Galaxy 5G Not Working Or Not Showing (2026)

If your Samsung Galaxy will not connect to 5G or keeps dropping back to 4G, the cause is often a setting, a plan limit or a carrier issue rather than a broken phone.

Most of the fixes below take under a minute each and do not erase your data.

Work down the list in order and stop as soon as the 5G icon returns in the status bar.

Why is your Galaxy not showing 5G?

What does 5G need to work on a Galaxy?

Samsung lists three requirements for 5G.

• A 5G-capable Galaxy phone.
• Carrier 5G coverage where you are.
• A data plan that includes 5G.

Samsung says most Galaxy phones released since 2020 support 5G, including the A series, but you should confirm your exact model with your carrier.

If one of the three is missing, no setting on the phone will fix it.

Step 1: Check coverage and your signal

If you are outside your carrier’s 5G area, the phone will stay on 4G or LTE.

Ask your carrier whether 5G is available at your address, and try again from another location.

The 5G indicator appears in the status bar only when the phone is actually connected.

Step 2: Toggle Airplane mode and restart

1. Swipe down from the top and turn on Airplane mode.
2. Wait about 30 seconds, then turn it off.
3. Restart the phone.

This makes the phone search for networks again, and Samsung’s own tips include a restart.

Step 3: Set the network mode to include 5G

1. Open Settings > Connections > Mobile networks.
2. Tap Network mode.
3. Choose an option that includes 5G, such as 5G/LTE/WCDMA/GSM auto connect.

Samsung’s page notes that the exact options vary by phone, carrier and software version.

If the connection is unstable, Samsung also suggests trying the other available modes and checking after each.

Step 4: Install the latest software update

Go to Settings > Software update > Download and install.

Samsung lists updating the software among its 5G troubleshooting tips.

Restart the phone once the update finishes and check the status bar.

Step 5: Clear the Mobile Networks cache

Samsung’s 5G guide lists this as a fix, and it does not touch your personal files.

Open Settings > Apps > Mobile Networks > Storage and clear the cache.

Do not clear data here unless Samsung support tells you to.

Step 6: Reset the access point names

Wrong data settings can stop mobile data from working properly.

1. Open Settings > Connections > Mobile networks > Access Point Names.
2. Tap the three-dot More options menu and choose Reset to default.
3. Tap Reset.

Step 7: Reset mobile network settings

This restores network settings to their defaults.

1. Open Settings > General management > Reset.
2. Tap Reset mobile network settings.
3. Tap Reset settings, then Reset.

Samsung says the reset does not affect installed apps or personal data, but you may need your carrier to re-establish specific network settings.

Step 8: Reseat the SIM or check your eSIM

A badly seated SIM can cause patchy service.

1. Power off the phone.
2. Push the ejector tool into the small hole on the tray.
3. Place the SIM with the metal contacts facing down and slide the tray back in.

Do not force the tray, because a backwards SIM can bend or break it.

For an eSIM, open Settings > Connections > SIM manager to confirm the line is turned on and set as primary for data.

Step 9: Test in Safe mode

Safe mode turns off third-party apps, so it shows whether a downloaded app is interfering.

1. Hold the Volume down and Side keys, then tap Power off.
2. When the screen is off, hold the Volume down and Side keys together.
3. Release the Side key at the Samsung logo and keep holding Volume down until Safe mode appears.

If 5G works there, uninstall recently added apps in Settings > Apps.

To leave Safe mode, hold Volume down and the Side key and tap Restart.

Why does the phone sometimes show 4G or LTE next to 5G?

Samsung explains that a 5G phone can stay connected to 5G and to a 3G or LTE network at the same time.

That second connection helps calls, texts and data arrive reliably, so seeing LTE at the edge of coverage is not always a fault.

Samsung adds that running both connections can drain the battery faster and make the phone warmer.

Step 10: Factory data reset as a last resort

Back up first, because this erases everything on the phone.

Open Settings > General management > Reset > Factory data reset > Reset > Delete all and enter your password.

Only use this after the carrier has confirmed your line and plan support 5G.

Which fix changes what?

How do you test the phone’s network hardware?

Samsung’s support page for network signal problems recommends diagnostics in the Samsung Members app.

Open Samsung Members, tap Support, tap Get Started and select Mobile network, then follow the instructions.

If the test flags a fault, contact Samsung through chat, the Samsung Members app or its support contact page.

When should you call your carrier?

Call your carrier if other 5G phones work in your location but yours does not.

Tell them your model, what you already tried and whether 5G is included in your plan.

Ask whether your line needs provisioning for 5G or whether there is a local outage.

What should you do next?

Related guides: no service or signal and mobile data not working.