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.

Posted on Jun 18, 2021 8:14 PM

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iphone 5s cannot update iOS from 9.3.5 to 10.2.1 in 2021

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