How to fix poor signal, mobile data or calling issues in Samsung phones

If your Galaxy phone is experiencing low signal or even no signal at all, you may be unable to connect to the internet, and its ability to make or receive phone calls may be limited.

At peak times or in busy areas, towers may become overloaded, slowing down mobile data access. Make sure you verify your account is in good standing and service is active with your carrier.

Some carriers may slow data access once you have reached a certain limit, or data may be slower in certain areas. Contact the carrier to learn more.

If you’re facing these issues, then you are in right place, below you can check the options to solve these problems.

Fix 1

Common fixes for low or no signal on phone

Verify the account and services.

• Make sure your account is active and you haven’t reached any usage limits.
• If you have recently made any changes to your service, such as switching carriers or upgrading your plan or phone, contact your carrier to make sure everything is correct on their end.

Check your coverage.

• Some features of the nearby landscape, such as trees and buildings, can interfere with your phone’s reception, and this can vary by carrier.
• You may also be outside your carrier’s coverage area, or they may be experiencing an outage.

Reboot your phone.

• A reboot will close all running apps, and force the phone to reconnect to the towers.

Check common settings.

Swipe down from the top of the screen to open the Quick settings panel and make sure the following are set properly:

• Airplane mode should be disabled
• Mobile Data should be enabled
• Turn off Wi-Fi Calling

Next, open Settings, and then tap Connections. Tap Mobile networks, tap Network operators and then tap Select automatically.

Remove accessories.

• Remove any third-party accessories and cases because they can interfere with the antenna, especially if it claims to boost the signal.
• Unplug anything that may be in the USB port.

Check the SIM card.

• Verify that the SIM card is correctly installed and not damaged.
• If possible, test with another active SIM card.
• While you have the SIM out, check the liquid damage indicator.

Fix 2

Reset network settings on a phone or tablet

Open the network settings.

• Navigate to and open Settings. Search for and select Reset network settings.

Reset the network settings.

• Tap Reset network settings again, and then tap Reset settings. Tap Reset to finish.

FIX 3

Perform a software update on a phone or tablet

The phone or tablet will show the last date that it checked for updates. To download an update, you must be connected to the internet.

Download updates manually.

• On your device, navigate to and open Settings, tap Software Update, and then tap Check for updates. Tap OK.
• After the update, your device will restart.
• You can also check for updates using Smart Switch.
• If your carrier is Verizon, swipe to and tap System updates, and then tap Check for system updates.

Make sure your device has enough space if you’re having trouble.

• Make sure the phone or tablet is connected to the internet and charged more than 50 percent before installing a software update.
• Some carriers require a Wi-Fi network connection and will not allow you to update using mobile data.
• If an error occurs during a software update and your phone or tablet keeps restarting.
• If your phone or tablet doesn’t have enough storage space, you can clean up your storage with Device care.

Check your phone or tablet after the update.

• If you were having issues before the software update, use the phone or tablet normally to see if the problem has been solved.

FIX 4

Reboot the phone or tablet in safe mode

Certain downloaded apps can make your phone or tablet freeze, crash, or lag. Some apps can even affect camera functionality, cause audio issues, and affect network connectivity.

If the issues do not appear while in Safe mode, the problem is caused by a downloaded app and it should be uninstalled.

Reboot the phone or tablet in Safe mode.

First, open the Power menu:

• On phones with a regular Power key, press and hold the Power key until the Power menu is displayed.
• On phones without a dedicated power button, swipe down with two fingers from the top of the screen to open Quick Settings.
• Tap the Power icon at the top of the screen.

Touch and hold Power off until the Safe mode icon is displayed. Tap Safe mode to start your phone in Safe mode. If you’ve entered Safe mode successfully, you’ll see Safe mode displayed at the bottom of the screen.

Check if the phone or tablet is still having the same problem.

Use the phone or tablet normally and see if the issue has been resolved. If the phone or tablet is operating normally, a recently installed app was most likely causing the issue.

• If the issue is gone in Safe mode: One of your recently downloaded apps was likely the cause of the problem. Proceed to step 3.
• If the issue still exists: Downloaded apps may not be the cause of the problem. You may need to reset the phone or tablet to the factory setting.

Uninstall apps.

• One by one, uninstall any apps you downloaded just before your phone or tablet began having the issue.
• After uninstalling each app, restart the phone or tablet and see if it is functioning normally.

Reboot the phone or tablet normally.

• On phones with a regular Power key, press and hold the Power key until the Power menu is displayed.
• Tap the Power icon at the top of the screen.

Tap Power off to turn off the phone. Wait until the phone or tablet completely turns off, and then press the Power key again to turn it on. See if the issue has been resolved.

FIX 5

Perform a factory data reset on your phone or tablet

Before you reset the phone or tablet.

• Make sure to back up your phone or tablet. All data and settings will be erased.
• Write down the username and password for the account that you used to back up your data.
• If you have encrypted the SD Card inserted into your phone or tablet, make sure to decrypt it before the reset. Navigate to Settings, search for and select SD, and then tap Decrypt SD card.

Perform a factory data reset.

• Navigate to Settings.
• Search for and select Factory data reset.
• Tap Factory data reset again and then tap Reset.
• You may need to enter your Samsung account password or Lock screen password. The phone or tablet will reboot.