If your iPhone displays the "could not activate cellular data network" error, you won't be able to connect to a 4G or 5G wireless network. This is an irritating problem. The article provided by MiniTool offers several practical methods to resolve this issue.

Occasionally, your iPhone might function normally with phone calls and texting, but when you attempt to access the internet, you'll receive the message stating "could not activate cellular data network." Let's now explore how to address the "iPhone could not activate cellular data network" issue.

1. Toggle Airplane Mode

Prior to attempting the subsequent solutions, you should switch Airplane Mode on and off to determine if the problem stems from a connectivity issue. Here's how to do it:

Step 1: Open Control Center on your iPhone and tap the iPhone Airplane Mode. Alternatively, navigate to Settings > Airplane Mode and toggle the slider.

Step 2: Restart your iPhone once Airplane Mode is activated.

Step 3: Use the same method to locate and disable Airplane Mode.

2. Reset Network Settings

Resetting network settings will refresh all network-related information on your phone. To reset the network settings, follow these steps. Go to Settings, select General, scroll down, and click Reset. Then, choose Reset Network Settings.

3. Switch from WiFi to Cellular Data

WiFi might be the cause of the "could not activate cellular data" issue. You can try switching from WiFi to cellular data. Here's how:

Step 1: Navigate to the Settings app and select Cellular.

Step 2: Enable cellular data and return to the previous screen.

Step 3: Tap the WLAN option and disable it.

4. Update Your iPhone

If the "could not activate cellular data network" issue persists, consider updating your iPhone to see if it resolves the problem. Ensure your iPhone is charged and connected to a Wi-Fi network. Unlock your iPhone and go to Settings > General > Software Update. Tap Install and enter your passcode.

5. Reinsert the SIM Card

Improperly inserted SIM cards can trigger the "could not activate cellular data network" error. Therefore, reinserting the SIM card is worth trying to fix the SIM card not provisioned error. Be careful when removing the SIM card to avoid damaging the SIM card slot or the card itself.

If the SIM card slot is broken or damaged, it needs replacement. If both the SIM card and slot are correctly placed, insert the SIM card into another functioning iPhone to check its performance. If the error persists, replace the current SIM card with a new one.

Also see: Confused by SIM Card Not Provisioned Error? Look Here

Final Thoughts

In summary, this article has demonstrated how to fix the "could not activate cellular data network" issue. If you encounter the same error, try these solutions. If you have alternative ways to resolve it, feel free to share them in the comments section.

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