Phone lag to response.

There are three reasons why a phone turns off :

 By incompatible software you downloaded.

The trash in the phone hasn't been cleared for a long time.

 The phone stays on all the time without rest. As we all know, when the computer is in use for too long, its reaction will become slow or stuck. It’s the same for phones as well.

So what should we do to keep the phone as swift and smart as it was originally?

Well, to download phone software for trash clearance, and clear the phone trash from time to time is the easiest way. Besides, we should form a good habit of turning off phones at night to let the phone have a rest.