How to update my iPhone to 15.5 iOS

If you need iOS 15 or higher, then you need a newer, more modern iPhone. iPhone 6 lacks the hardware to be updated past iOS 12.5.7.

adegbite208 wrote:

Update my phone

If you have an eligible phone which can be updated, you go to Settings > General > Software Update. If there is an update available, update your phone.

Otherwise, we can't guess what iPhone you own and what you are hoping to update it to.

The iPhone 6 Plus can be updated to iOS 12.5.7, no further.

Update my phone