Cellular Data for Apps Keeps Turning Off on iPhone 18 Pro? How to Fix

Several users have reported that they are having problems enabling cellular data for apps on their iPhone 18 Pro or iPhone 18 Pro Max. Some users have said they turn on cellular data for apps but then cellular data keeps turning itself off.

It appears that cellular data for all apps or individual apps does not stay on and keeps disabling itself. Some apps on your iPhone may require cellular data to operate normally at all times. This setting on your iPhone can be found in Settings > Cellular.

Are you experiencing this problem too? Then this article is for you. This can be an important problem. To explain more, you turn on cellular data for apps but this is not respected by the iOS system. This will prevent you from using your apps because these apps will fail to connect to mobile data or access cellular data. For example, if the affected app was Apple Maps, you will not be able to use it when you need it. This is because they will stop functioning unless there is a Wi-Fi connection available.

Please try the steps below:

Check Low Data Mode first

Before you troubleshoot anything, check whether Low Data Mode is on. Apple describes it as a mode that pauses automatic updates and background tasks when iPhone isn’t connected to Wi-Fi.

Go to Settings > Cellular > Cellular Data Options, tap Data Mode, and see which option is selected. If it is Low Data Mode, choose a different option and test your apps again.

While you are in Settings > Cellular, scroll down to the list of apps and services. Each one has its own switch, and when an app’s switch is off your iPhone uses Wi-Fi only for it. Tap Show All to see how much data each app has used.

Restart

Restart your iPhone. This may fix your problem. Here is how you can do this:

Press and hold either volume button and the side button until the power-off slider appears.
Drag the slider, then wait 30 seconds for your device to turn off.
To turn your device back on, press and hold the side button (on the right side of your iPhone) until you see the Apple logo.

Carrier settings update

There may be a carrier settings update. If there is an update, update your carrier settings. This is a small update from Apple and your carrier. This is an easy process. Here is how:

Open the Settings app.
Tap General.
Tap About.
Follow the onscreen instructions to install your carrier update.

Force restart your iPhone

Here is how you can force restart your iPhone 18 Pro:

Press and quickly release the volume up button.
Press and quickly release the volume down button.
Press and hold the side button until you see the Apple logo (this might take longer than 10 seconds).

Update your iPhone

There may be a bug with your current iOS software causing this cellular data problem. Updating your iPhone may resolve your problem. Here is how you update your iPhone.

There are two ways to do this:

Wirelessly. On your iPhone, go to Settings > General > Software Update. This will check for updates. If there is an update available, follow the onscreen instructions to update your device.
Using your computer. Connect your iPhone to your computer. Open Finder (if your computer is running macOS Catalina or later) or iTunes (if your computer is running an earlier version of the macOS software or if this is a Windows PC). Then locate your device and follow the onscreen instructions.

Reset network settings

Reset your network settings. Doing so will erase your networking settings. For example, you will need to reenter your Wi-Fi passwords, etc. Here is how: