How can I update my iPhone

Update your iPhone, iPad, or iPod touch

• If you have an iPhone XR, you can update to 17.4.1

Go to Settings > General > Software Update.

This link will show you how to update your iPhone, iPad, or iPod touch using WiFi -

Update your iPhone or iPad - Apple Support

This link will show you how to update using your computer -

Update iOS on iPhone - Apple Support

Just go to settings then click on general and there you will see an option saying software update click there, if there will be any updates available it will show up then download the update and install it after downloading your iPhone will reboot then the updates will be installed.