Fix mobile data issues

For US locations, check the coverage map.

If you use your phone outside the US, check the 120+ supported countries where you can use Google Fi.

If you're in a coverage area:

• Try to move to a location with a stronger signal. If you're indoors or underground, step outside.
• If that doesn’t work, go to the next step.

If you're not in a coverage area:

• Try to connect to Wi-Fi.

Tip: If you and other Google Fi users only experience issues at a specific location, it’s likely a coverage issue. Use Wi-Fi at that location.

To check if you can connect to the Internet, try a different site like android.com. If it works, the issue might be with the website or app you try to use.

If another website doesn’t work, continue on to the next steps.

To reset some settings and fix your connection:

1. Turn on Airplane mode.
2. Turn off Airplane mode.

For iPhone settings, refer to the Apple article Use Airplane Mode on your iPhone.

Tip: When you’re done, make sure Airplane mode is off. Wait 2–3 minutes before you test again. You can’t make calls if it's on.

1. On your phone, open the Settings app .
2. Tap Cellular.
3. Turn on Cellular data.

If the mobile data is already on, turn it off and then on again.

1. On your phone, open the Settings app .
2. Tap Cellular.
3. Find “Network Selection.”
   • If you only have one cellular plan, select Cellular Data Network.
   • If you have multiple cellular plans, under “Cellular Plans,” select your Google Fi number. Then, select Cellular Data Network.
4. Make sure the "Automatic network" is on.

If your SIM or carrier is only Google Fi:

1. On your phone, open the Settings app .
2. Tap Cellular.
3. Find “Cellular Data Options” and “Voice & Data.”
4. Make sure it's “5G Auto.”
   • If not, select 5G Auto.
5. To check if your connection has improved, select 5G On or LTE.

If you have multiple SIMs or carriers:

1. On your phone, open the Settings app .
2. Tap Cellular.
3. Tap your Google Fi SIM.
4. Find “Voice & Data.”
5. Make sure it’s “5G Auto.”
   • If not, select 5G Auto.
6. To check if your connection has improved, select 5G On or LTE.

Tip: When you move back to areas of strong connectivity, we recommend you change your default setting back to “5G Auto.”

If your SIM or carrier is only Google Fi:

1. On your phone, open the Settings app .
2. Tap Cellular.
3. Find “Cellular Data Options.”
4. Turn on Data roaming.

If you have multiple SIMs or carriers:

1. On your phone, open the Settings app .
2. Tap Cellular.
3. Tap your Google Fi SIM.
4. Scroll to the bottom of the page.
5. Turn on Data roaming.

For iPhone settings, refer to the article Restart your iPhone.

Important: Every time you reboot your iPhone, ensure the iOS APN settings are correct.

1. On your phone, open the Settings app .
2. Tap Cellular.
3. Find “Cellular Data Network.”
   • If you only have one cellular plan, select Cellular Data Network.
   • If you have multiple cellular plans, under “Cellular Plans,” select your Google Fi number. Then, select Cellular Data Network.
4. In each of the APN fields below, enter: h2g2.
   • Cellular Data
   • LTE Setup
   • MMS
5. In the MMSC field, enter: http://m.fi.goog/mms/wapenc.
6. In the MMS max message size field, enter: 23456789.
7. In the personal Hotspot field, enter: h2g2-t.
8. After you update the APN settings, turn on Airplane mode.
9. Re-check connection.

System updates for your phone can provide improvements that may fix your issue. To check and install system updates:

1. On your phone, open the Settings app .
2. Tap General Software Updates.
3. To check for an update, swipe up.
   • If a system update is available, tap Install. To complete the update, you might need to restart your phone.
   • If a system update isn’t available, the screen displays “Your system is up to date."

Important: After you leave the area, turn on Automatically select a network.

Try this step only if automatic network selection is on and your data issue continues.

1. On your phone, open the Settings app .
2. Tap Cellular Cellular Plans Fi Network Selections.
3. Turn off Automatically select a network.

Wait up to 2 minutes for available networks to appear. Try each one until you connect. Once you're connected, you do not need to manually select another network in the country.

Tip: If a network says “Forbidden,” try to connect anyway. If it works, the label is removed.

If you try the steps above and still have issues with domestic service, contact Google Fi support.