iPhone 7 only charging when powered off and not properly recognised

Question

iPhone 7

Lanzado en Septiembre 16, 2016. Modelos 1660, 1778. Disponible en GSM o CDMA / 32, 128, o 256 GB / Oro Rosa, Oro, Plata, Negro Mate y Negro Brillante.

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jake @coleeaulabs

Rep: 23

3

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Publicado: 10 de may. de 2020

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iPhone 7 only charging when powered off and not properly recognised

my iPhone 7 (a1778) has started to only charge when it is completely turned off. battery health is at 76ish. whenever it is connected it shows the “unlock iPhone to use accessories”. Windows does detect it but is unable to recognize and interact with it. it says device descriptor request failed. it is not recognized in recovery mode either. it works fine other than this. i also don’t see any symptoms of loop disease.

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Solución Elegida

Allan Barr @barriphone

Rep: 7.1mil

Barr iPhone Repair

4

2

Publicado: 10 de may. de 2020

Opciones

I would have your tristar ic tested. It's the chip that controls the data in and out of the phone and it also controls the charging. The most common reason they fail is an aftermarket charging cable that is not MFI Certified. It will not be able to control the power spikes and damage the tristar ic. Most good shops should have a tester. If that is the issue you will need someone who does micrsoldering. I would recommend jessa from ipad rehab ipadrehab.com or Jason from sts telecom ststelecom.com. you can watch their videos on YouTube. I hope the information helps you.

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