How do I fix all issues to make my iPhone work smoothly?

Hi Prospaid,

welcome to this Apple (user-to-user) community!

Re: Pls help me to fixe all the issues that ca make my phone work smoothly

✽ To sidestep a lot of issues, it seems wise to keep your iOS version updated to the newest compatible version.

✽ Restarting an iPhone deletes temporary files, re-establishes connections, may update recent setting changes,

and often restores order if something is not working as expected.

✽ Using the iPhone User Guide to keep up-to-date with software changes and new features can be useful.

Else:

We don't know:

which issues you are having

what model of iPhone you have

which iOS version is installed

if unnecessary apps like virus-checkers, ad-blockers, cleaners, (even VPN) are installed

whether third-party apps (if any are installed} are kept updated to the newest versions

whether you have plenty of memory / storage space free (at least 8 Gb) for your iPhone to use.

in order for the community to give particular tips, suggestions, help, or fixes .

All the best :-}

You may get better and prompt responses if you may kindly provide the iPhone Model that you have and the iOS version if it is known to you and re-post.

With the limited information that you have provided, It is hard to even guess the problems faced by you. 

You may get faster and better responses to your query by --> Writing an effective Apple Support Commun… - Apple ...

Please re-post with detail so that someone else can help.