My phone not working well

You'll need to be more specific about what you mean by "not working well". What are you trying to do? What exactly is happening? Are you getting error messages? If so, what do they say?

Writing an effective Apple Support Commun… - Apple Community

xtylish113 wrote:

My phone not updated and not working good

Well, if you haven't updated it, that's the first thing you should do.

Update your iPhone, iPad, or iPod touch - Apple Support