Battery drain after 4.4.2 update!!

What should I do my battery of HTC one drains a lot after the update I went to battery usage and the problem was Android OS but I don't know how to fix it.PLEASE HEEELP IM GETTING FRUSTRATED.THANKS

Sent from my HTC One using XDA Premium 4 mobile app

Show Accepted Answer

Guest Quick Reply (No URL, BBcode or HTML)

Last post by wmonahan
1 hour ago
Last post by steuber.audrey
4 hours ago
Last post by sibyl98
2 hours ago
Last post by ubecker
40 minutes ago