I don’t know how to update my phone

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

Hello.

Make sure your device is compatible with the next update. If it is not, then it will usually say “Your device is up to date”

The steps to update are here:

Settings > General > Software Update

Good afternoon,

I've prepared a short YouTube video directly from Apple, and it's quick and easy if you follow the steps.

Have a great weekend, and thank you for reaching out to the Apple Support Community.

Start here: Update your iPhone, iPad, or iPod touch - Apple Support