> For the complete documentation index, see [llms.txt](https://docs.eseye.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.eseye.com/anynet-sim/troubleshooting/troubleshooting-sim-cards.md).

# Troubleshooting SIM cards

Complete the following steps to eliminate common problems:

1. Ensure that the device is powered on.
2. Ensure that the SIM card is inserted correctly, making sure that the gold plate is in contact with the reader.

   For device setup guidance, see [Device configuration best practices](/anynet-sim/connectivity/device-configuration-best-practices.md).
3. Ensure that antennas are attached to the device.
4. Ensure that there is network coverage in the area where the device exists.
5. Leave the device on for 20 minutes.
6. Turn the device off for 10 seconds.
7. Power on the device.

{% hint style="info" %}
If these steps do not resolve the issue, contact [Eseye Support](mailto:support@eseye.com).
{% endhint %}


---

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