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Whether your iPhone isn't showing up in the Find My app, its location isn't updating, or the device appears offline, there's no need to panic.
Don't panic, in most cases if Find My iPhone isn't working, making a few tweaks in the settings can get the feature running smoothly again.
The "Reset Network Settings" button on the iPhone not only resets your Wi-Fi settings -- resulting in a clean slate with respect to Wi-Fi access points and their passwords -- it also resets your ...
If cellular data is not working on your iPhone, there are several ways to potentially resolve the issue.
All the reasons your cellular data may not be working and how to fix it.
Why is my hotspot not working? 11 ways to fix your mobile hotspot on iOS or Android phones ...