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What can I do if my iPhone 6 is getting slow because of the update?

FILE- In this Thursday, Dec. 6, 2012, photo, the back of an iPhone 4 in New York. Apple is apologizing for secretly slowing down older iPhones, which it says was necessary to avoid unexpected shutdowns related to battery fatigue. The company issued the statement on its website Thursday, Dec. 28, 2017. (AP Photo/Karly Domb Sadof, File)

Q: What can I do if my iPhone 6 is getting really slow because of the update?

A: The recent admission from Apple that they have been intentionally slowing down older iPhones since the release of iOS 10.2.1 in January has many users upset.

Conspiracy theories have been floating around for years that claimed Apple intentionally makes older iPhones slower to encourage people to upgrade to a newer model, but this was not what they admitted to doing.

The iOS update that started slowing older devices down was in response to an issue that users were having with phones that would suddenly shut down.

Apple determined phones with weaker batteries were incapable of operating properly under a full load, which was causing them to suddenly shut down.

The 10.2.1 update was designed to examine the condition of the battery on iPhone 6 or older and when it detected an aging battery, it slowed the processing down to prevent the battery from becoming overloaded and shutting down.

With the release of iOS 11.2, users of iPhone 7 models with aging batteries will be subject to the same.

An aging battery turns out to be one of the most common causes of a slow iPhone, so I’d start there.

How many charging cycles?

All Lithium Ion batteries suffer from loss of capacity as the number of charging cycles increase. Apple estimates that after 500 charging cycles your battery can lose up to 20 percent of its capacity.

A charging cycle is considered a complete discharge and recharge of the battery equivalent to 100 percent of the battery’s capacity, even if it’s done over several charging sessions. For instance, if you recharge your battery when it’s at 50 percent twice, that equals one charge cycle.

There is nothing built-in to your iPhone that allows you to see the number of charging cycles, but knowing what the number is can be very helpful.

If you have a Mac-based computer, you can install an excellent free program called coconutBattery that can provide excellent info on both your iPhone and MacBook batteries.

The “loadcycles” reading tells you how many charge cycles have been performed, while the “design capacity” reading is an indication of the percentage of the original capacity left in your battery.

If you have a Windows-based computer, you can use a program called iMazing to check your iPhone’s battery details.

Free battery replacements

If you have an iPhone 6s that was manufactured between September and October of 2015, you may be eligible for a free battery replacement.

Apple has created a web resource that allows you to check your iPhone 6s by entering the serial number of your device. To find your device serial number, go to Settings, then General, then About.

Battery replacement options

If your iPhone is covered by AppleCare+, Apple will replace your battery at no charge when it falls below 80% capacity.

If you’re not sure if you have coverage, you can check here.

If it’s not covered, Apple usually charges $79 to replace it, but the company recently announced that it will be offering $29 battery replacements for iPhone 6 or later in the near future.

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