What to do when the SIM card is not detected on your Samsung Galaxy device
If calls and mobile network connections suddenly appear to stop working on your Galaxy device, the SIM card may not be recognised properly. This issue may be caused by temporary software errors, SIM card damage, incorrect insertion, or carrier-related settings. Follow the troubleshooting steps below to check the SIM card status and restore network connectivity on your Galaxy device.
Note: Menu names, settings, and screen layouts may vary depending on the model and software version.
If calls or mobile network connections are unavailable, first check whether the SIM card is recognised properly on your Galaxy device.
Step 1. Open Settings > Tap About phone.
Step 2. Tap Status information.
Step 3. Tap SIM card status.
Step 4. Tap Network and check whether the mobile carrier name appears.
If your Galaxy device cannot detect the SIM card, the issue may be related to temporary software errors, mobile network settings, SIM card damage, or incorrect SIM card insertion. Follow the steps below to troubleshoot the issue.
Check for carrier SIM protection services
Some mobile carriers provide SIM protection services that prevent SIM cards from being activated on new devices.
- Contact your mobile carrier to check whether the SIM protection service is enabled.
- If enabled, disable the service through the carrier before using the SIM card on a new device.
Reset mobile network settings
Incorrect mobile network settings may prevent the SIM card from connecting properly to the carrier network.
Step 1. Open Settings > Tap General management.
Step 2. Tap Reset.
Step 3. Tap Reset mobile network settings.
Step 4. Tap Reset settings.
Step 5. Read the caution information > Tap Reset to confirm.
Thank you for your feedback!
Please answer all questions.