What Il I do to makes it install

Marking your own post as Solved may prevent others from trying to help because they think you have fixed your problem.

What kind of software do you want to update?

If you want to update the IOS version, see below.

Update your iOS device.        

Get help with over-the-air iOS updates          

Update – Can’t or can’t restore 

Have you tried using iTunes on a computer or Finder if running Catalina to do the update?

 Update software on iOS devices in iTunes on Mac

If you see an error when you update or restore your iPhone, iPad, or iPod