Wants to update my iOS to 15.0

beautydorin wrote:

I want to update it just to download Netflix and other apps

Which iPhone? You’ll need an iPhone 6s or newer, here.

iPhone 6 and earlier are not supported on iOS 15.

Here is how to update iPhone 6s or newer: Update your iPhone or iPad - Apple Support

FWIW: Marking your thread as answered means many people won’t look at it.