WhyBee
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Q: iOS 9.21 iphone 6 draining battery seriously

On 5th Feb 2016 finally i update my iphone 6 software to ios 9.2.1 after i read some note from website say ios 9.2 have some malicious problem.. so im update..after one night with ios 9.2.1, i feel my iphone getting hot on back side.. And i see my battery level drop almost 40% without using.. i see on setting->battery standby mode only 4hours but battery drain so fast after update.. I already do full restore with itunes and set up new phone without restore previous backup.. The problem still remains ..after few hour research i found some tips, say restore previous backup, but nothing changed, its still same. I never found this problem with previous update..but this is my first time i face it.. Apple doesn't not really test the new software before release it.. I hope incoming update iOS 9.3 this problem solve.. I cant downgrade anymore to iOS 9.2 because apple has stop signin the firmware.. my iphone now getting worst and useless cant stay over 3 hours after full charger.. if use LTE connection battery drain 1 min 1% and backsides iphone feel hot

iPhone 6, iOS 9.2.1

Posted on Feb 5, 2016 9:47 PM

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Q: iOS 9.21 iphone 6 draining battery seriously

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  • by sterling r,

    sterling r sterling r Feb 7, 2016 8:06 AM in response to WhyBee
    Community Specialists
    Feb 7, 2016 8:06 AM in response to WhyBee

    Hi there WhyBee,

     

    It sounds like you have gone all the way up to restoring your phone as a new device without restoring from a backup, but your battery keeps draining faster than it should. If you have downloaded some apps since restoring as new it is possible that a certain app may be using all the charge on the battery, so I would check to see if that is the case:

     

    About the battery usage on your iPhone, iPad, and iPod touch

     

    If that is not the case then I would suggest seeking service for your phone. When you restore a phone as a new device with iTunes that will remove software from the equation as a culprit if issues persist. 

     

    iPhone Repair - Battery & Power

     

    Thank you for using Apple Support Communities.