Many users encounter the "Mobile Network State Disconnected" message on their smartphones and may not fully understand what it means. This message indicates that the device is unable to establish or maintain a connection to the mobile network, affecting mobile data, calls, and SMS. While this issue occurs on both Android and iOS devices, it appears differently on each platform. It’s important to note that this issue is network-related and not caused by an eSIM issue. In this post, you can find out what causes the issue, how to fix it, and what to do if it happens while traveling abroad.
What Does “Mobile Network State Disconnected” Mean?
The "Mobile Network State Disconnected" message indicates that the device is unable to establish or maintain a connection to the mobile network. This can prevent you from using mobile data, making calls, and sending messages. While this error is typically associated with Android devices, where it often appears in the device’s internal diagnostic menus, iOS devices experience similar issues under different labels, such as “No Service” or “Searching”. These terms refer to the same underlying issue: an inability to connect to the network.
Common Causes Why "Mobile Network State Disconnected" Appears
The "Mobile Network State Disconnected" message can appear due to several network-related issues. The most common causes of this message are:
Weak or No Cellular Coverage: If you're in an area with poor or no mobile signal, your device won’t be able to connect to the network, triggering this message.
Incorrect APN Settings: APN settings are required to connect your device to the mobile internet. If these settings are incorrect, your device won’t be able to access the network properly.
Airplane Mode Turned On: If airplane mode is enabled, your device will be disconnected from all mobile networks, preventing any network connection.
Temporary Network Issues from the Operator: Sometimes, the issue can stem from temporary outages or maintenance by the network operator, causing disruptions in service.
Device Software Errors or Outdated Firmware: If your device’s software is outdated or has a glitch, it may not connect to the mobile network properly, triggering the error message.
Incorrect Network Mode Settings: If the network mode is set incorrectly, such as selecting 5G in an area that doesn't support 5G, it may prevent the device from connecting to the available network.
How to Fix "Mobile Network State Disconnected" Issue
If you encounter the "Mobile Network State Disconnected" message, there are some general troubleshooting steps you can take to resolve the issue:
Restart the Device: A simple restart can often fix temporary software glitches or network registration problems.
Turn Off Airplane Mode: Make sure airplane mode is disabled, as this disconnects your device from the mobile network.
Re-check APN Settings: Ensure that the APN settings are correct, as incorrect settings can prevent your device from connecting to the network.
Confirm Coverage is Available: Check if you are in an area with strong network coverage. Move to a location with better signal strength if necessary.
Update Device Software: Keeping your device's software up to date ensures it has the latest bug fixes and network compatibility improvements.
Toggle Mobile Data Off/On or Reset Network Settings: If the issue persists, try turning mobile data off and on again, or reset network settings to restore default configurations.
Disclaimer: The steps for resolving this issue are general recommendations. Please refer to your mobile device manufacturer's instructions for specific guidance.
For more information, you can read our posts on What Is APN, What is Mobile Data, and What is Reset Statistics on iPhone.
“Mobile Network State Disconnected” Issue on Android and iOS Devices
Both Android and iOS devices can experience network connectivity issues, but they report them differently.
For iOS Devices:
"No Service": This message appears when the iPhone cannot establish a connection to the mobile network. It indicates that the device is unable to find a cellular network to connect to [1].
"Searching": This message shows up when the iPhone is actively searching for a network but has not been able to connect. It typically resolves when the phone finds a network to connect to [1].
How to Fix: Check for carrier settings updates, review Cellular Data and Network Selection settings, and reset network settings if needed. Allow iOS some time to register to the network after changes.
For Android Devices:
"Mobile Network State Disconnected": This error typically appears in the device’s internal diagnostic or modem menu and shows that the phone cannot establish a data connection. It may occur due to network issues or incorrect settings [2].
How to Fix: Re-check APN settings to ensure they are correct, confirm that the Network Mode (5G/LTE/3G) is set correctly, and make sure the correct SIM or eSIM is selected for mobile data.
Disclaimer: The names of the issues and their corresponding solutions may vary over time. For the most accurate and up-to-date information, please refer to your device manufacturer.
Is "Mobile Network State Disconnected" Related to eSIM?
The "Mobile Network State Disconnected" message is almost never caused by an eSIM issue. It typically indicates a network registration or signal problem, often due to network coverage or device configuration. Global eSIM services, such as Roamless, use local carrier infrastructure, so the issue is generally related to the network, not the eSIM itself. The problem would only be linked to the eSIM if the plan was never activated, which is rare compared to network-related causes.
What to Do if "Mobile Network State Disconnected" Appears While Traveling Abroad
If the "Mobile Network State Disconnected" message appears while traveling abroad, here are the steps to take:
Wait for Network Registration: After arriving in a new country, it may take some time for your device to register on the local network. Be patient and allow your phone to establish a connection.
Ensure Proper Network Settings: Check that your device’s network settings are configured correctly to connect to local networks without additional roaming charges.
Verify APN Settings: Confirm that your APN settings are correct for the country or region you’re in. Incorrect APN settings can prevent you from accessing mobile data.
Manually Select a Network: If your device isn't automatically connecting to a network, try manually selecting one. This can help if your phone is struggling to find the correct network.
Contact Support: If the issue persists, contact your carrier or eSIM provider for assistance. They can help resolve any network-related issues.
Frequently Asked Questions
What is "Mobile Network State Disconnected"?
The "Mobile Network State Disconnected" message appears when your device is unable to establish a connection to the mobile network. This prevents you from using mobile data, making calls, and sending messages.
What causes the "Mobile Network Disconnection" issue?
This issue is typically caused by poor signal, incorrect APN settings, airplane mode being turned on, or temporary network problems from your carrier.
Can I use mobile data when "Mobile Network State Disconnected" occurs?
No, mobile data cannot be used because your phone is not connected to the network.
What does 'Mobile Network State Disconnected' but the service is still active mean?
This happens when your device shows "Mobile Network State Disconnected" but the service is still active. It usually indicates a temporary network issue or settings problem preventing the connection, despite the network being available.
Do I need to replace my eSIM due to the "Mobile Network State Disconnected" issue?
Replacing your eSIM service or eSIM plan is usually unnecessary, as this issue is typically related to network settings or temporary signal loss.
Sources:
[1] Apple Support. ''If you see SOS, No Service, or Searching on your iPhone or iPad''. Accessed December, 2025. - https://support.apple.com/en-us/120000
[2] Samsung Community. ''Solved: Mobile data status is disconnected''. Accessed December, 2025. - https://eu.community.samsung.com/t5/galaxy-s23-series/mobile-data-status-is-disconnected/td-p/11409749
