Why I can't install the upgrade to my phone?

I have a HTC One M8, Verizon, an upgrade message pops out, I download the file, when the file finish to download it give me 3 options: Install, Install later, don't install. I choose install, the phone turns off and enter into recovery mode but I don't know what to do?
Please help me.

Software update: 6.20.654.3

Thank you.

Show Accepted Answer

Guest Quick Reply (No URL, BBcode or HTML)

Last post by flebsack
2 hours ago
Last post by amir.hahn
2 hours ago
Last post by zkihn
4 hours ago
Last post by abdullah34
4 hours ago