Samsung Galaxy S10 won’t connect to mobile network (FIX)

The Samsung Galaxy S10 series brought a lot of goods in a similar package as their predecessors, as expected for the flagship series of probably the best smartphone hardware manufacturers out there. However, the novel OneUI 2 needs some ironing. There seems to be a string of different S10 data issues (Wi-Fi issues, as well). The connection is either unstable (and super-slow) or the device won’t connect to 4G/LTE at all.

If you are experiencing data issues, make sure to check the steps below in order to fix them for good.

Table of contents:

1. Reset your APN to default values
2. Wipe the cache partition
3. Disable Adaptive data usage
4. Reset Network settings
5. Update the S10 firmware and contact your service provider
6. Reset the device to factory settings

Galaxy S10 won’t connect to a mobile network

Solution 1 – Reset your APN to default values

The first thing to try in order to resolve Samsung Galaxy S10 data issues is to reset your APN settings. There might be a problem with the local configuration. Also, make sure that your Preferred network type includes LTE/4G.

Follow these steps to reset APN to default values:

1. Open Settings.
2. Select Connections.
3. Choose Mobile networks and then Access Point Names.
4. Tap on the Menu and then select Reset to default.

If you are still experiencing issues, make sure to contact your carrier’s call center and ask for a new APN configuration.

Solution 2 – Wipe the cache partition

Some users managed to resolve the issue by wiping the cache partition from the Recovery menu. Some suggested resetting network settings after this action, but we suggest taking additional steps only if the issue persists.

If you are not sure how to wipe the cache partition on the Samsung Galaxy S10, make sure to follow the instructions below:

1. Power off your Samsung Galaxy S10.
2. Simultaneously press and hold the Power button, Volume up, and the Bixby button until the Android logo appears.
3. After that, you should see the Recovery menu.
4. Once there, use the volume keys to navigate through the menu and press the Power button to select wipe cache partition.
5. Choose Yes and press the Power button to wipe the cache partition.

Solution 3 – Disable Adaptive data usage

Another thing we recommend doing is disabling the Adaptive data usage when Wi-Fi is unstable. When enabled, this option allows for smart switching between Wi-Fi networks and mobile data. However, it has caused some issues with Samsung’s OneUI 2 and the Samsung Galaxy S10.

Here’s what you need to do in order to disable the automatic use of mobile data on your device:

1. Open Settings.
2. Choose Connections.
3. Select Wi-Fi and enable it.
4. Tap on the 3-dot menu and choose Advanced.
5. Disable the “Switch to mobile data” option.

Solution 4 – Reset Network settings

If the data issues persist on the S10, it would be a good idea to reset the Network settings. Have in mind that this will erase all saved SSIDs and Bluetooth pairings. Once you reset network settings, your carrier should provide you with configuration messages for 4G/LTE and MMS. Make sure to apply them.

Here’s how to reset your Samsung Galaxy S10 network settings:

1. Open Settings.
2. Choose General management.
3. Tap Reset.
4. Select Reset Network Settings.
5. Confirm when prompted.

Solution 5 – Update the S10 firmware and contact your service provider

It’s talked a lot about connectivity issues concerning Samsung’s flagship series. The OEM decided to address them and, based on multiple reports, most of the issues are fixed with a patch. So, ensure that your device’s firmware is up to date.

In addition, the problem might be associated with carrier coverage issues so, if the problem persists, make sure to contact your carrier. Especially if you got a carrier SIM-locked device. They should give you a better insight.

Solution 6 – Reset the device to factory settings

Finally, if none of the aforementioned steps proved fruitful, the only thing we can recommend is resetting your Samsung Galaxy S10 to factory settings. Just make sure to back up all your data prior to resetting your phone. This procedure will erase everything, including your internal storage.

Follow these steps to reset your Samsung Galaxy S10 to factory settings:

1. Back up everything from your internal storage to an SD card or cloud.
2. Open Settings.
3. Choose General Management and then Reset.
4. Select Factory data reset.
5. Tap Reset and then tap Delete All.

With that said, we can call it a wrap. Thank you for reading and don’t forget to tell us about alternative solutions or different issues you are experiencing. You can do so in the comments section below.

Editor’s note: This article was initially published in May 2020. We made sure to revamp it for freshness and accuracy.