If you’re having Wi-Fi or cellular issues that you just haven’t been able to resolve using other methods, iOS gives you the option to reset all your network settings. This sets just about everything back to the factory default,...
We all know that notifications center is group by app, it is troublesome if you have a lot of notifications. 3uTools has an iTip for you as below, hope it would be helpful.
Here 3uTools simulated the iPhone6s can not boot due to battery problem, and we have tip of the check-in process in the "bring in for repair" step as below.