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Apple Mobile Products: iPhone, iPad, iPod
iPhone Hardware and Accessories
iphone 3GS goes into emergancy shutdown in cold weather
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<blockquote data-quote="XJ-linux" data-source="post: 1003255" data-attributes="member: 33722"><p>Not exactly the same here, but I've noticed that when it gets below 20 degrees F here in Minnesota, my iPhone's speaker sounds garbled when the phone rings, email chime alerts, or the like. The iPhone is also sluggish and often Safari and Mail crash when it's below zero. My guess has always been that, since flash memory is essentially purposed electromagnetism, battery charge reduces by orders of magnitude the further below water's freezing point the battery goes and reduces voltage. I assume the iPhone channels voltage to critical applications based on some sort of logic, based on available power. If it's cold enough, it would make sense that corruption of data could occur on a flash based system, which would not occur on a HDD based memory system. It might also disable certain subsystem to prevent corruption of data, which could account for erratic behavior of the device. Keep in mind these phones don't have a big nasty CPU releasing energy as heat to the same degree as a laptop or desktop computer. Just a though, I could easily be way off.</p></blockquote><p></p>
[QUOTE="XJ-linux, post: 1003255, member: 33722"] Not exactly the same here, but I've noticed that when it gets below 20 degrees F here in Minnesota, my iPhone's speaker sounds garbled when the phone rings, email chime alerts, or the like. The iPhone is also sluggish and often Safari and Mail crash when it's below zero. My guess has always been that, since flash memory is essentially purposed electromagnetism, battery charge reduces by orders of magnitude the further below water's freezing point the battery goes and reduces voltage. I assume the iPhone channels voltage to critical applications based on some sort of logic, based on available power. If it's cold enough, it would make sense that corruption of data could occur on a flash based system, which would not occur on a HDD based memory system. It might also disable certain subsystem to prevent corruption of data, which could account for erratic behavior of the device. Keep in mind these phones don't have a big nasty CPU releasing energy as heat to the same degree as a laptop or desktop computer. Just a though, I could easily be way off. [/QUOTE]
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Apple Mobile Products: iPhone, iPad, iPod
iPhone Hardware and Accessories
iphone 3GS goes into emergancy shutdown in cold weather
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