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Introdotto il 19 settembre 2014, questo iPhone con schermo da 4,7" è la versione più piccola dell'iPhone 6 Plus. Identificato dai numeri modello A1549, A1586, and A1589.

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Device powering off regularly

Im currently on my second battery replacement. First one died without warning. Now im not sure if my phone is on its way out or its the battery again. Some more background, my home button no longer works and the sleep wake button doesn’t always respond.

My phone has started turning off without warning with a big percentage of battery left, 50%+. I waited till I got home and plugged it in to charge. On plugging my device into the lightning cable, the device powered up almost immediately, however it got stuck in a boot loop. I did some reading, but didn’t get any conclusive answers so just left it charging, constantly booting over and over. Eventually, it completed its boot sequence and I thought it was fixed. However, it has only got worse since then. It is constantly shutting with varying battery percentages. Sometime I can reboot it by pressing the power button, sometime not at all. Weirdly, if I open up the screen and lift it up from the device, it boots and starts to work. I have no idea why this makes the device boot.

Im lost and would appreciate some input. Please ask for any more details.

Risposto! View the answer Anch'io ho questo problema

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The Essential Toolkit

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The Essential Toolkit

The most helpful tools in our most compact kit.

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Soluzione Prescelta

IMHO, your battery is most likely at the end of its life. To be certain, use a battery utility, such as coconutBattery (for Mac) or 3uTools (for Windows). Anything less than 70% of design capacity will require replacement.

You can also use the Battery Health Diagnostic (Settings\Battery\Battery Health (Beta)) in iOS 11.3 and above. It will tell you what the health of the battery is. Once the battery reaches below 80% of design capacity, iOS will throttle performance if the phone experiences an unexpected shutdown. You can read more about this at the following Apple Support page (https://support.apple.com/en-us/HT208387).

If you have access to a USB Ammeter, you could use that to determine if the phone is really drawing current when it says it's charging.

Be wary of cheap replacement batteries and order from a reputable vendor. Take a look at this guide to see what is involved before attempting this repair yourself.

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Justin Badger sarà eternamente grato.
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