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Sometimes, despite having mobile data enabled, you may not see the 4G / LTE icon on your screen. In such cases, your mobile data on the device may not be functioning properly. Alternatively, you might see the 4G icon but still face issues with internet browsing.
This Mytour guide below will walk you through the steps to fix the 4G activation problem on your iPhone.
Method 1: Disable Wifi Calling Feature.
Method 2: Reinsert the SIM Card.
Method 3: Enable Data Roaming.
Method 4: Reset Network Settings.
Method 5: Switch to Airplane Mode.
Method 6: Check for Latest Network Updates.
Method 7: Install the Latest iOS Update.
Method 8: Restore iPhone to Factory Default Settings.
Method 1: Disable Wifi Calling
Wifi Calling allows users to make calls and send texts for free as long as their device is connected to Wifi. However, this feature may impact device battery life. Additionally, it could be a cause of mobile data and 4G issues on the iPhone. To resolve 4G activation problems, turn off the Wifi Calling feature.
Furthermore, this feature could be a culprit behind mobile data and 4G issues on the iPhone. Therefore, to fix 4G not working or unable to activate 4G on the iPhone, the solution is to disable the Wifi Calling feature.
Access Settings =>Phone =>Wifi Calling and turn off this feature.
Method 2: Reinsert the SIM Card
Another way to fix the 4G activation issue on iPhone is to try removing and reinserting the SIM card. To do this, follow the steps below:
Step 1: Turn off your iPhone.
Step 2: Remove the SIM card.
Step 3: Reinsert the SIM card and restart your phone.
Step 4: Try enabling 4G again to see if it works.
Method 3: Enable Data Roaming
After updating to the latest iOS version, some users reported mobile data issues. Enabling Data Roaming can help resolve these issues.
Access Settings =>Mobile Data =>Mobile Data Options and turn on Data Roaming, then restart your iPhone. Finally, check if 4G is working.
Method 4: Reset Network Settings
If the above methods are not applicable and the 4G activation issue persists on your iPhone, the next troubleshooting solution is to reset the network settings to their default state.
Step 1: Open the Settings app.
Step 2: Tap on General in the settings.
Step 3: Scroll down, find, and tap on Reset.
Step 4: Tap on Reset Network Settings.
Step 5: Enter the passcode, iPhone unlock password, to proceed with the reset.
Step 6: Tap on Reset Network Settings to confirm the reset.
Method 5: Switch to Airplane Mode
In some cases, you might accidentally enable airplane mode and forget to turn it off, causing the 4G not to activate on your iPhone. Try enabling airplane mode, wait a few minutes, then disable it and check if 4G is working on your iPhone.
Method 6: Check for the Latest Network Updates
Network providers often release updates to address issues and problems commonly faced by users. Try checking and installing the latest updates from the network provider to fix the 4G issue on your iPhone.
Step 1: Open the Settings app => General .
Step 2: Find and tap on About.
Step 3: At this point, the Carrier Settings Update window will appear on the screen. Here, locate and tap on Update.
Method 7: Install the Latest iOS Update
Similarly, Apple releases the latest iOS updates to fix bugs and issues. Try installing the latest iOS update and see if the problem persists.
Step 1: Open the Settings app =>General .
Step 2: Next, find and tap on Software Update .
Step 3: If available, update to the latest iOS update. During the update process, the iPhone will restart.
Finally, check if 4G is functioning on your iPhone.
Method 8: Restore iPhone to Manufacturer's Default Settings
If all the above methods have been applied but proved ineffective, your last resort is to restore the iPhone to the manufacturer's default settings.
However, this method will completely erase the data on your device, so before you begin, it's advisable to back up your iPhone to ensure your valuable data is not lost.
Follow the steps below to back up your iPhone:
Step 1: Connect your iPhone to the computer and create an encrypted iTunes backup to secure your data.
Step 2: The next step is to restore the iPhone to its factory default state. Open the Settings app =>General .
Step 3: Scroll down, find, and tap on Reset .
Step 4: Find and tap on Erase All Content and Settings to initiate the process.
Step 5: Enter the passcode, iPhone password.
Step 6: Tap on Erase iPhone to confirm.
Step 7: Next, connect the iPhone to the computer and open the previously saved backup. Tap on Restore Backup to begin the restoration process.
Step 8: After the process completes, check if 4G is operational on your iPhone.
This Mytour article has just guided you through some methods to fix the issue of unable to activate 4G on the iPhone. If you have any further questions or concerns, such as How to Fix iPhone Unable to Connect to Wifi or issues with internet connectivity, feel free to leave your comments below the article.
