In 2014, Apple unveiled a pair of larger iPhone 6 models that kicked off a "supercycle" of upgrades and permanently blunted the high-end Galaxy sales of its top rival in premium smartphones, Samsung. However, it appears that iPhone 6 and 6S suffered statically high hardware failure rates in diagnostic testing, a problem that has since subsided in more recent models. What caused this mysterious problem, and how did Apple improve things?

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Even though Apple's iPhone battery replacement discounts are no longer in the news, and the company has theoretically had time to ramp up supply, wait times for replacements have actually worsened in the past few weeks, according to Barclays research.

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Apple has published a new page about lithium ion batteries in an iPhone, discussing how they work in simple terms, why throttling is necessary, and how iPhone performance management works in iOS 11.3.

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Apple appears to be launching a trial of a iPhone replacement reservation program in Canada, with the app taking names for particular models, and promising to alert users when the battery is available locally.

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Italy's antitrust organization has launched a probe investigating allegations that Apple and Samsung use software updates not as a tool to secure or expand upon smartphone capabilities, but to speed up the aging process and force users to buy new phones.

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Apple is facing yet another government-backed inquiry into revelations of deliberate iPhone performance throttling, as the Shanghai Consumer Council reportedly sought answers on Monday.

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Lawmakers have reportedly sent yet another letter to Apple leadership related to the company's announcement of battery-related slowdowns in older iPhones.

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Following revelations that the French government opened an investigation into Apple's decision to throttle the performance of older iPhones with deteriorated batteries, a U.S. senator on Tuesday sent a letter to CEO Tim Cook requesting details about the hardware policy.

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Hagens Berman, the consumer rights law firm that successfully obtained a $450 million settlement from Apple over e-book price fixing, once again has the tech giant in its sights, and on Friday filed a class-action lawsuit over the iPhone throttling debacle.

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Lithium-ion batteries such as those found in nearly every smartphone and tablet are not little, indestructable homogenous power reactors. AppleInsider delves briefly into the construction and chemistry of them, and discusses how an old battery works against not only device manufacturers, but the users themselves.

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Many Apple retail locations in the U.S. started the $29 battery replacement for the iPhone 6 or newer, well in advance of a previously announced January timeframe -- but appointments are filling up, and turnaround times are growing.

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Apple once again leads the industry in smartphone and tablet activations during the week before Christmas, with very strong sales of the iPhone X leading the iPhones released in 2017, with the iPhone 6 and iPhone 7 availability both overseas and as used devices adding to the lead.

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Taking a different tack, another class action lawsuit -- following Apple's admission that it slows down iPhones with weakened batteries -- charges that the company made the change to avoid the full cost of fixing defects.

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Just hours after the first class action suit was launched against Apple alleging harm by the company's actions to keep iPhones functional in the case of a chemically depleted battery, a quintet of filers in have also launched their own in Chicago.

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Apple has confirmed that it temporarily slows down processes on older iPhones with poorly functioning batteries, with a recent update able to "smooth out the instantaneous peaks" when needed to prevent device shutdown.

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It appears that some iPhone 6 or iPhone 6s family devices may see slower processing speeds as a result of a battery that has reached the end of its operational life, with some users getting a speed-up upon replacement -- but the slow-down and consequent speed-up isn't universal, and there may be other factors at work.

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The iPhone dominates all other manufacturers and devices on Flickr's annual year in review roundup, with all of the service's top 10 devices in use occupied by various iPhone models.

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Problems with battery life and instability proliferate on social media and Apple support forums after the launch of iOS 11, but have persisted through three sub-point updates, don't seem to have a common cause, or are easily rectifiable.

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The Apple Watch Series 3 adds LTE but at a cost to older iPhone owners -- the iPhone 5s won't be able to set up or communicate with the device at all.

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Just ahead of an anticipated "iPhone 8" and "iPhone 7s/7s Plus" reveal, newly-published research shows Apple's iPhone 7 and 7 Plus are the most used iPhone models in the U.S. with a 34 percent of the install base.

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