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Repair information and guides for the iPhone 6 that was released on September 19, 2014. Model Numbers: A1549, A1586, and A1589

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Any Updates On IOS 12 battery health after battery replacement?

There are a couple of older threads here about iOS 11.3 beta where battery health shows “service” after replacing the Apple battery with the iFixit battery. I did that replacement with iFixit batteries to two iPhones 6 and a 6+ about 11 months ago and had no issues. Performance was clearly improved in all benchmarks (using GeekBench 4) after replacement suggesting the iOS throttling was deactivated. After upgrading to iOS 12 and 12.1 the battery utility still cannot read the battery and shows “service”. While those same benchmarks after upgrade to iOS 12 show even greater CPU performance and do not hint at throttling, I am still concerned that iOS will start to throttle the device because it cannot read the now 9 month old iFixit batteries. That is because the Battery Health utility still shows “service”. Other forums are unclear. Does anyone have any specific knowledge or experience to offer? When I replace the battery again next year, should I buy from iFixit or try to get from Apple, if that is now possible?

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Apple is trying to bury any third party repairs. So use another program like Coconut Battery

How to test an iPhone's Battery

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Yes, but im wondering if the phone shows “service” is that means it will throtle or it will work on 100% of its performance capabilityes?

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Apple would be begging for another class action law suit if they pulled another throttling scam.

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Battery health hasn’t changed to my knowledge. I replaced the battery on my Dad’s 6 plus with an iFixit battery and no dice. Doesn't matter if I run iOS 11.4.1 or iOS 12/12.1, I still get the “service battery” error. I have since given up and accepted the fact that only genuine Apple batteries work with battery health.

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pjgarrison will be eternally grateful.
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