iphone 5s cannot update iOS from 9.3.5 to 10.2.1 in 2021
Hi all,
Currently, my iphone 5s with iOS 9.3.5, the Software Update notify that iOS 10.2.1 downloaded, but I click "Install now" the busy indicator show and then nothing happens.
So, how can I update the iOS or can I remove the update version 10.2.1 to latest version for 5s model?
Thanks in advance.