I have downloaded my ios latest version but it cannot be installed
When i try to install it says the update is temporarily unavailable
When i try to install it says the update is temporarily unavailable
You may get better and prompt responses if you may kindly provide the iPhone Model that you have and the iOS version if it is known to you and re-post.

With the limited information that you have provided, It is hard to even guess the problems faced by you.
I have downloaded my ios latest version but it cannot be installed