Very bad battery time, can't charge, can't turn off?

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iPhone 5

6ème génération de l'Apple iPhone, annoncé le 12 septembre 2012. La réparation de cet appareil est similaire aux précédents modèles et nécessite des tournevis et des outils pour ouvrir et faire levier. Disponible en GSM ou CDMA / 16, 32 ou 64Go / Noir ou Blanc.

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Alexander @coldncursed

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Publié: 9 juil. 2014

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Very bad battery time, can't charge, can't turn off?

Hello my friends!

I have an Iphone 5 I've received from a customer who claimed he couldn't charge the phone. So, I put in a new battery and tried charging. Nope, can't charge.

Ok.

So I changed out the charging dock.. Still can't charge. Meanwhile, the battery which was at 80% is now at 60%. You can literally watch the procent go down with a little bit of patience. Even with a new battery/new dock.

Phone shows no sign of being watter damaged/dropped. It's a little over one year old.

I've tried three batteries and three different charging docks, no luck.

Also, if I try to turn the phone off, if turns off for like 10seconds and then starts itself.

Any ideas? =)

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jessabethany @jessabethany

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This is U2 failure for sure. Sorry to hear :( I don't know of any US group that can fix that.

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Hey Jess, thanks a lot for your answer. Care explaining what U2 is? I'm assuming it's some sort of component on the motherboard. How is it possible that it "failed" ?

Either way I will send it in for guarantee reperation (They'll switch it out for a new) considering the phone is under one year old.

10 juil. 2014 par Alexander

U2 is a chip on the motherboard that controls the logic of the usb/charging interface. As the iPhone 5 ages, we are seeing that this chip is particularly susceptible to damage from non-Apple chargers. The symptoms of U2 failure can be fast battery drain, auto power-on, fake charging, no charging of stone dead battery, and no usb recognition. A phone can have one or more of those symptoms from U2 failure.

10 juil. 2014 par jessabethany

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Hey Jess, thanks a lot for your answer. Care explaining what U2 is? I'm assuming it's some sort of component on the motherboard. How is it possible that it "failed" ?

Either way I will send it in for guarantee reperation (They'll switch it out for a new) considering the phone is under one year old. — Alexander
U2 is a chip on the motherboard that controls the logic of the usb/charging interface. As the iPhone 5 ages, we are seeing that this chip is particularly susceptible to damage from non-Apple chargers. The symptoms of U2 failure can be fast battery drain, auto power-on, fake charging, no charging of stone dead battery, and no usb recognition. A phone can have one or more of those symptoms from U2 failure. — jessabethany