Hi ,I need to open my iPhone I forget password , I have the iPhone box

Follow the steps here: If you forgot the passcode for your iPhone, iPad, or iPod touch, or your device is disabled - Apple Support

You need to follow the instructions in the Apple support article—>If you forgot the passcode for your iPhone, iPad, or iPod touch, or your device is disabled - Apple Support

Why can’t you use iTunes? You need to restore your phone through iTunes.

If you can't do what the link tells you to do, schedule an appointment at your Apple Store Genius Bar for help.

No one can give you the password. It doesn't exist anywhere other than on the phone and in your head.

What do you mean that your phone never gave any signal?

Be nice. ☺️

Yes sir.