> For the complete documentation index, see [llms.txt](https://global-starlink.gitbook.io/help/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://global-starlink.gitbook.io/help/at-and-t/troubleshooting.md).

# Troubleshooting

## **My data isn't working**

### **If you've just activated your SIM**

If you've just activated your SIM and you've got a signal, you might need to check a couple of things to get your data working.

1. Check that you have Data Roaming & Mobile Data turned on in your Settings.
2. Make sure that you have changed your APN settings to match the following:\
   \
   **Name:** AT\&T\
   **APN:** att.mvno\
   **User name:** Not set\
   **Password:** Not set<br>
3. Restart your phone
4. If it's still not working, try the SIM in another phone to see if it'll work there.

### **If you've been using your SIM but suddenly your data has stopped working**

1. Check that you have data balance left by dialling **\*777#**
2. Try turning your device off and on
3. Try to remove the SIM from your device and re-insert it
4. [Check the coverage](https://www.att.com/maps/wireless-coverage.html) in the area you're in, remember to click AT\&T Prepaid at the top
5. If your phone says it's connected to LTE or 4G but the data isn't working, try to manually turn off LTE/4G to connect to 4G/3G.\
   \
   **Apple:**\
   Settings > Mobile > Mobile data options > Disable LTE > Restart\
   \
   **Android:**\
   Settings > Connections > Mobile Networks > Network Mode > Switch to 3G/2G > Restart

It might look different depending on your device! If these instructions don't match exactly, explore your settings until you find **Network Mode**

## **I've tried everything and it's still not working**

These guides are based on our most frequently asked questions. If you can't find what you're looking for, feel free to reach out to us and we'll try our best to provide assistance. You can reach us at [hello@g](mailto:hello@globalstarlink.com.au)lobalstarlink.com.au 📩

Before contacting us, please have the following information ready:

* Which SIM have you bought?
* Where are you located?
* When did you activate and what happened when you activated it?
* What troubleshooting steps have you tried?
* Please send through a screenshot of your Mobile Network settings and your APN settings with the WiFi turned off and your mobile data turned on so we can see what's going on.
* Any other details that might help us, help you!


---

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