![]() ![]() (You can check to see how much power your apps are using by following these instructions.) And while force-closing apps isn’t recommended for saving battery, it’s still a good idea to look at what’s using your power both onscreen and in the background. To prevent this from happening when you’re outside, keep your phone in a sturdy case and store it close to your body-in a pants pocket, for example, instead of in a coat pocket. That’s how McCormick ultimately revived his seemingly dead iPhone: He hiked inside. If your phone dies while you are in the cold weather, the solution is to keep your phone warm or warm it back up. Battery life will return to normal when you bring the device back to higher ambient temperatures.” “Using an iOS device in very cold conditions outside of its operating range might temporarily shorten battery life and could cause the device to turn off. “Low- or high-temperature conditions might cause the device to change its behavior to regulate its temperate,” Apple says. Some tests suggest that the phones’ batteries can stop discharging electricity altogether when in frigid temperatures. According to Apple’s guidelines, iPhones should be used between 32☏ and 95☏. Rechargeable lithium-ion batteries, the kind used in iPhones, are vulnerable and volatile. But the most destructive and widespread is a bad battery. Some common causes of that include water damage, a broken or blocked charging port, and the occasional software glitch that prevents the screen from coming on. “However, we do frequently see phones that appear dead,” McCormick says. Other times, catastrophic hardware failures can permanently brick phones.) (While a bug on the new iPhone X did cause the phone’s screen to freeze when exposed to cold weather, Apple has since released a software fix to solve the problem. The most common causes of that are when someone tries to jailbreak his or her phone-hack it to access its master files or install third party apps-or if someone stops an update partway through the process. In the traditional software sense, a phone “bricks” when “the hardware is perfectly fine but the software has the phone locked up and unusable,” McCormick says. In fact, “bricked” phones aren’t as common as you may fear. The cold weather made the phone unusable as long as I was outside.” “I personally had this happen a few years ago when I was hiking with some friends in Wisconsin. “In the winter, especially on iPhones, it’s easy to see your phone simply die if you’re standing out in freezing weather,” he says. While this scenario is bleak-the dead-as-a-brick phone, not your empty Instagram feed-there's no reason to panic, says Matt McCormick, owner of Jet City Device Repair in Chicago and Seattle. It was fully charged when you left the house, so what happened? Did the cold weather kill your phone? You whip your iPhone out to snap a photo for your Instagram feed, but the screen won't come on. You’ve just built the perfect snowman: top hat, carrot nose, corncob pipe, the works. ![]()
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