How to fix phone signal loss on Android

If you're experiencing the "No mobile network" error on your Android phone, this can interrupt your ability to make calls, send texts, or use mobile data. However, you don't need to rush to a repair shop – in this article, Tiptory will guide you through the simplest and most effective ways to fix the "no mobile network" error that anyone can do themselves.

Method 1: Fixing the “Mobile Network Not Available” error on Android - you must try this right away.

Step 1: Turn airplane mode on and off to resolve network issues.

When your phone experiences network connection problems, a simple fix is ​​to turn airplane mode on and off again . This restarts the mobile data connection.

How to do it:

• Go to Settings > Network & Internet (or Connections & Sharing ) > Airplane Mode and toggle the switch on/off.

• Alternatively, you can swipe down from the top of the screen and tap the airplane icon to turn it on and then off again.

This usually helps the phone reconnect to the cellular network faster.

Step 2: Restart your Android phone to fix network errors.

If toggling airplane mode on and off doesn't work, try restarting your phone . This helps clear background apps or temporary files that might be causing connection issues.

How to do it:

• Press and hold the Volume Down button and the Power button simultaneously for about 10–20 seconds until the screen turns off (the screen goes black).

• Release your finger and wait for the Android logo to appear as the phone restarts.

Tip: Sometimes, completely turning the power off and then back on is more effective than just restarting. This helps to fully refresh the system.

Step 3: Remove and clean the SIM card if the phone still has no signal.

If restarting your phone doesn't fix the problem, the SIM card might be loose or dirty , affecting the connection. If you're using an eSIM , skip this step.

How to remove and clean the SIM card:

1. Turn off your phone .

2. Use a small, sharp object (like the tip of a pin or a straightened paperclip) to remove the SIM tray .

3. Gently remove the SIM card from the tray, then wipe the metal surface of the SIM card with an alcohol wipe or cotton swab dampened with alcohol.

4. Insert the SIM card back into the tray and turn on the phone.

Note: If your SIM card is very old or heavily soiled, you should replace it with a new one to ensure a stable connection.

Step 4: Update the software to fix connection errors.

If it's been a while since you last updated your phone, some issues like losing signal or being unable to connect to the network may occur.

How to update the software:

1. Go to Settings > Software Update (or About phone ) > Download and install .

2. Connect to Wi-Fi to ensure a stable update download.

3. After the download is complete, the phone will restart to install the update .

Software updates help fix old bugs, increase performance, and improve network connectivity.

Step 5: Turn off Data Roaming to avoid connection errors.

Data roaming is used when you are outside your carrier's coverage area, such as when traveling abroad. If you leave roaming enabled even when you 're not traveling far , it can cause network errors or incorrect notifications.

How to turn off roaming:

1. Go to Settings > Network & Internet (or Connections ) > Mobile network .

2. Select the Data Roaming option and toggle the switch off .

This helps your phone connect more stably within the coverage area of ​​your mobile network provider.

Step 6: Move to a different location for better signal reception.

Sometimes, a weak phone signal is due to obstructions such as thick walls, concrete, metal , or you are in an area with poor signal (basement, remote area, etc.).

How to handle it:

• Move closer to the window , go outside, or find a more well-ventilated area.

• Avoid standing near large electronic devices or in enclosed rooms with a lot of metal materials.

Changing your location can help your phone pick up a stronger and more stable signal .

Method 2: Advanced Solution for Fixing Mobile Network Unavailability

Step 1: Reset network settings to fix mobile connection errors.

If your phone displays the error "No mobile network," it may be due to conflicting or incorrect network settings . Resetting your network settings might resolve the issue.

Note: You will not lose any personal data or files, but you will lose your saved Wi-Fi password and manual network settings.

How to reset network settings:

1. Go to Settings > System (or General Management ).

2. Select Reset > Reset Wi-Fi, Cellular & Bluetooth (or Reset Network Settings ).

3. Press Reset settings to confirm.

After restarting, try connecting to the internet or making a phone call to check if the problem has been resolved.

Step 2: Manually switch carriers if your phone has no signal.

Normally, your phone will automatically select the appropriate network provider , but sometimes this malfunctions, preventing you from connecting.

How to manually change carriers:

1. Go to Settings > Connections > Mobile network .

2. Select your Network Provider (or Network Operator ).

3. If it's set to Automatic , select Manual and wait for the phone to find available networks. Then, choose a different network.

4. If it's currently set to Manual , try switching it back to Automatic .

This helps the phone find the best signal from the network and may fix the "No mobile network" error.

Step 3: Change network type to improve mobile signal.

If your phone uses 5G but the 5G signal is weak or nonexistent in your area, you can switch to LTE (4G) for a more stable connection.

Note: Only perform this step if you fully understand it; avoid making mistakes that could lead to further errors.

How to change the network type:

1. Dial *#*#4636#*#* to open the hidden menu.

2. Select Phone information > press Run Ping test .

3. Then select Set preferred network type and choose GSM , LTE , or LTE/UMTS as needed.

4. If that doesn't work, try switching to a different network type or reverting to the default.

Choosing the right network type will help your phone get a good signal and reduce connection drops.

Step 4: Restore factory settings if other methods don't work.

If the network issue persists, you can reset your phone to its factory settings . However, this will erase all personal data and applications on your device.

Note: Before proceeding, please back up important data to avoid loss.

How to back up data:

• Go to Settings > Accounts & Backup > Data Backup > Back Up Now .

How to reset the device:

1. Go to Settings > General Management > Reset .

2. Select Factory data reset.

3. Press Reset and enter your PIN if prompted.

Once completed, the phone will return to its original state and network issues can be completely resolved.

Step 5: Contact your network provider if you cannot resolve the issue.

If you've tried all of the above and are still getting the "No mobile network" error, the problem is most likely with your account or network provider .

• The network provider may have temporarily suspended the service due to unpaid fees.

• Or perhaps the cell tower near you is experiencing a problem that you are unaware of.

Please call your mobile network's customer service hotline immediately to check and receive timely assistance.

Translated by: Sidney Bailey Hoang .