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2014年9月19日に発売されました。この5.5インチサイズのスクリーンをもつiPhoneは、iPhone6の拡大サイズ版です。

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iPhone 6 Plus not powering on after being off for a long time

So one day I left my phone in a drawer and forgot to power it off fully. It’s been months before I found it again and when I plugged it in, nothing came up on the screen. I left it overnight and still no response. I know the charger is good because it works on my other phones and the phone had worked previously before I left it in the drawer. I’ve tried hard restarting to attempting DFU mode and nothing. This phone has had battery drain issues even after a factory reset so I’m not that surprised that the battery was bad but I was expecting it to boot up. Anything else for me to try?

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If the battery was fully drained and totally dead the logic board will not send any power to the battery

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So is there anything that I can try or not?

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Replace the battery.

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Boost the battery with a power supply or one of those plug in battery charger boards if it keeps depleting below a certain tolerance and wont charge again then replace battery or if battery life isn't good... if the new battery doesn't fix it then replace tristar, thats the order I normally do it in cos sometimes the battery is perfectly fine it just gone too flat that one time and just needs a boost. Sometimes even just holding the power button and plugging the cable in and keeping the button held has worked for me but I might have just imagined this and the battery might not have been that dead lol

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Jimmy Luong さん、ありがとうございました!
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