Fix: Dexcom App Not Working on iPhone 11, 12 and 13

The Dexcom app is compatible with all the latest iOS versions but sometimes, due to some unforeseen situations, the app stops working. Many users all over the world are facing this problem where the Dexcom App is not working on their iPhone. In this article, let’s talk about some of the common fixes to get the app to work again on your iPhone.

Dexcom is an application that helps you to keep a track of your blood glucose levels. The device basically has a sensor and a transmitter that lets you manage your data on your mobile device – phone, watch, etc. The app gets updated regularly and since the app is used for medical purposes, some of the bugs might go unnoticed which will cause the app to not work on some of the devices. Don’t worry! I have got you covered with some of the possible fixes.

Fix Dexcom App Not Working on iPhone 11, 12 and 13

Fix: Dexcom App Not Working on iPhone 11, 12 and 13

Some of the methods to get the Dexcom app to work again : 

Method 1: Check if required permissions for the working of the app are given

Please make sure your Bluetooth is always ON, the internet connection is stable and the Dexcom app is running in the background and the app should not be killed when you clear your recent apps.

Steps to set the app to work in the background:

Low Power Mode (Settings App -> Battery -> Low Power Mode) needs to be Off.


Background App Refresh (Settings App -> Dexcom -> Background App Refresh needs to be ON.

This will do the job and let the app run in the background always.

Method 2: Make sure the app is updated to the latest version

One of the common reasons the Dexcom app suddenly stops working is because of the older version. Just pop the new update in and you are good to go.

To update The Dexcom App on iOS:

  1. Open your app store 
  2. search for Dexcom and click on update 
  3. wait till your app gets updated

Method 3: Make sure the region of your iPhone is correct

Sometimes when you sync your iPhone with iCloud, it somehow changes your region to some other region. Just change the region back to your current region and the app will start working again.

Steps to change the region of your iPhone 11,12 and 13:

Go to settings -> general -> language -> region

make sure you put the correct region this time

Method 4: Uninstall and install the app again

A simple but effective trick. This might fix your app and make it start working again in a few minutes.

To uninstall the Dexcom app:

Touch and Hold the app. Tap Remove app

Tap delete app and confirm the deletion.

To install the Dexcom app:

Open app store.

Search for the Dexcom app

Tap the Get button.

Method 5: Reboot your iPhone

Some errors are fixed when you reboot your device, so just reboot the device once and check if the app is working or not. This usually happens after the app gives you a notification that the app suddenly stopped working and sensors are detected. Rebooting basically refreshes the device and stops all the working apps in the background.


Reboot and Reset are two different operations. Reboot means restarting the device while resetting means deleting all the data on the device. So, make sure you reboot your device and not reset it.

Method 6: Update your System software to the latest build

Apps are created and updated according to the latest builds of iOS. Sometimes if you are on the old iOS version, the app will stop working or show unnecessary errors. So, update your iPhone to the latest release.

To update your iPhone to the latest version:

Go to Settings -> General -> Software Update

The screen shows the currently installed version of iOS and whether an update is available.

If the update is available, just install the update and reboot your phone.

Method 7: Check the storage on the phone

Check if you have enough storage for the app to work because the app needs to store data on your device and for that space is required. Just make sure at least you have 2GB of space on your iPhone.

To check the storage statistics

Go to Settings > General > iPhone storage

Clear your cached data for clearing some space. cached data doesn’t delete your data but just clears the background apps. Doing this once in a while is recommended.


As you can see, it’s pretty simple to fix the application and in most cases, we can’t say if the problem is from the Dexcom app or the iOS, but the above methods must fix your application and get it to start working again. if none of the above methods work, please contact the Dexcom app support and tell them about your issue and that would be the final solution to make the app work again on your iPhone.

Leave a Reply

Your email address will not be published. Required fields are marked *

This site uses Akismet to reduce spam. Learn how your comment data is processed.