how i can restore my iphone

Hello~ Not sure if this is what you need but click on below…

Restore your iPhone, iPad, or iPod to factory settings - Apple Support

If not post back with more details.

~Katana-San~

It is not clear what type of "restore" that you are asking about.

Do you want to restore the phone to factory settings?

Restore your iPhone, iPad, or iPod to factory settings - Apple Support

Do you want to restore the phone from a backup?

Restore your iPhone, iPad, or iPod touch from a backup - Apple Support