why is apple software update not working

When you see the option to Restore or Update, choose Update. Keep holding them until you see the recovery mode screen. iPhone 6s or earlier, including iPhone SE (1st generation), and iPod touch (6th generation) or earlier: Press and hold both the Home and the top (or side) buttons at the same time.Keep holding them until you see the recovery mode screen. iPhone 7, iPhone 7 Plus, and iPod touch (7th generation): Press and hold the top (or side) and volume down buttons at the same time.Then, press and hold the side button until you see the recovery mode screen. Press and quickly release the volume down button. iPhone 8 or later, including iPhone SE (2nd generation): Press and quickly release the volume up button.Keep your device connected and wait until the recovery mode screen appears:.If iTunes is already open, close it, then open it again. On a Mac with macOS Mojave or earlier, or on a PC, open iTunes. On a Mac with macOS Catalina or later, open Finder.If you're using iTunes, make sure you have the latest version of iTunes.

Make sure that your Mac is up to date.

Why is apple software update not working