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2014년 9월 19일에 출시된 이 4.7” 스크린 iPhone은 iPhone 6 Plus의 작은 버전입니다. 모델 번호 A1549, A1586 및 A1589로 식별됩니다.

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Why does my iPhone 6 only work when plugged in?

I have dropped my iPhone a few times and the screen has cracked. But one day I was just using my phone as per normal and then it suddenly turns off and repeats the apple booting up logo then turns off and repeats this for a bit then stops. When I plug my phone in it repeats the booting up progress for about 20 mins then boots up and sticks on 1% and when I remove it from the charger then phone turns off. I have tried opening up the phone disconnected and reconnected the battery to see if that was the problem and it has not helped any suggestions on what I can do? Im not sure if the battery is broken or if something else in the phone needs replacing.

Cheers

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Probably the battery needs replacing.

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It is highly unlikely that your battery just stopped working after a some falls. You already confirmed that the battery was still fully connected. If you have easy access to a battery, by all means try it.

However, your phone is exhibiting the classic symptoms (No-charge or fake charge) of a bad Tristar (U2) chip, responsible for the charging of your device. This is not a DIY repair.

I would suggest you find a qualified repair shop that does micro-soldering repairs so that they can properly troubleshoot the problem/

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Thank you so much mate, I will give this battery repair a go first and then if all else fails bring it in to a repair shop. Thanks

If your battery was gradually getting weaker and weaker, to the point it was hardly usable, then your battery may be defective. If your battery was working well up to the point where it was not, then it's probably a logic board issue.

@rany gives some great advice below on the battery replacement if you want to try that.

The charge circuit can go bad for several reasons. Falls/impacts but also using cheap chargers. The charge protection circuit is actually inside the Apple MFi -certified charger, not the phone. So if you use the cheap stuff, it can damage your phone.

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Your iPhone is showing the typical symptoms of a bad or (partially) disconnected battery.

Since it will eventually charge after 20 minutes of staying plugged in, it means the battery is taking some charge, but depleting it almost at the same speed. If you turn it off, leave it plugged, it may charge faster.

This slow charging can be caused by the battery being partially unplugged if for some reason the bracket holding the battery connector is missing.

This can also be caused by the battery gone bad. The iPhone 6 is now two years old and I've started seeing more and more coming in with bad batteries.

If you let your phone keep restarting, you may end up with corrupt data and eventually your phone will need to be restored, and all the data erased. I hope you have a back-up. If not, and your data is valuable, turn it off and keep it off until you can install a new battery.

To first reseat the battery connector, and if that doesn't help, to replace the battery, follow this guide and I highly recommend the batteries iFixit are selling. I use them myself for my customers and have nothing but great things to say about them. Otherwise you may receive a bad battery and the phone will keep restarting. Bad batteries are a plague and are the general rule not the exception of what is found on eBay, Amazon, and even from specialized parts sellers.

When trying to replace the battery, do not for any reason pry at the battery by leveraging against the board. You will ruin it permanently.

If a new battery does not fix it, report back. There are other steps to follow, such as perform a restore in case, like I said, the firmware got corrupted.

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So I replaced my battery and now my phone doesn't need to be always plugged in, yay! But it does not indicate it being over 5% and I know it is, and it random turns off then back on but no need to plug it in. I think this may be because it thinks its out of battery but its not? I was wondering of any simple fix, Cheers!

I hate to say it (and I hope for you I'm wrong), but chances are once your battery is depleted, you will have the same problems. A new battery should not indicate only 5% if you know it is charged and randomly turn off.

You could try to recalibrate your battery. Drain it, then recharge fully and then do a hard reset (home & power button until the Apple logo). If that doesn't work, re-read my answer below.

Yeah the same problem came back will take it into the shop. Thank you for your help

You probably only have a bad battery. As I "prophetized" before, and I am quoting myself here: "Otherwise you may receive a bad battery and the phone will keep restarting." Good luck though.

Hi @rany. I hope he/she comes back at some point once this has been figured out to let us know. There have been a lot of "my phone won't charge" & "I smashed my phone and I changed the battery..." questions lately.

I have always ordered my batteries from iFixit and ETS and I agree, I have not had any bad ones yet. That is the simplest fix to try but it's important to let people know that when batteries "die" shortly after the phone gets smashed, or people going cheap on chargers, that there could be other reasons at play. Otherwise, they are buying multiple batteries and then changing screens etc. for no apparent reason.

I'm all for fixer's (I consider myself one) but sometimes it just makes more sense to bring it to a shop for a quick and proper diagnostic.

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