For you to continue using your device as normal, you need to ensure your software is up to date. To check that you're using the latest software, please follow the below instructions. Data charges apply to software updates installed using data, so we recommend downloading software updates over Wi-Fi.
•Apple iPhone: Settings > General > About Device > Software Update
•Samsung: Settings > Software Update > Download and install
•Huawei: Settings > System > Software Update > Check for Updates
•Motorola: Settings > System updates > Check for updates
•Nokia: Settings > System > Advanced > System Update
•OPPO: Settings > Software Updates