My iPhone won't charge

If you already tried (to no avail) all the steps provided in the support article that led you here, it could be a hardware (battery? charging port? other internal component?) failure but we, just users like you, cannot diagnose that issue remotely, sorry.

I suggest that you make an appointment (*) and have your device+charger+cable inspected at an Apple Store or AASP (Apple Authorized Service Provider) among this list:--> https://locate.apple.com/choose-country-region . After checking it out, they'll give you all the available options.

Regards

Giulio

(*) You can do it:

• Online:--> Genius Bar Reservation and Apple Support Options - Apple;
• Contacting a local Apple Store or AASP among the list provided above;
• Using the "Apple Store" app, available and downloadable from AppStore.

The hyperlink located at the top of the page you accessed before submitting your question here is positioned under the section labeled "Related Article." It's possible that this article could have contained the information you were seeking.

To assist you more effectively, could you please specify which specific portion of the article wasn't clear to you? Unfortunately, the details you've provided are quite limited, making it challenging to accurately determine the exact issue you encountered. If you could provide additional context or information, I'd be better equipped to help you address the problems you're facing.

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.