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Apple의 2020년 주력 iPhone은 10월 23일에 6.1" OLED 디스플레이, 듀얼 12MP 카메라 시스템, 그리고 다석 가지 색상으로 출시되었습니다. iPhone 11의 후속 제품입니다.

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Logo comes on than off, nothing happens, need to disconnect bat

A client came in saying the screen turned black, I tried new screen and new battery, logo comes on once and then off, any thoughts ?

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disconnect front flex and check again, if that doesnt work try disconnecting the charge port

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When I tried a new screen I did not transfer the front flex, that illuminates it. I will try disconnecting the charge port.

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If possible, a reset of the phone will work or if not possible due to possible data loss connect it to your windows computer and use itunes to restore the device by clicking the "Restore" option or if you have a mac use itunes on older versions or simply use finder on newer models.

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So I tried disconnected the flex for charging port, if I did it right its the one just beside the battery connection, still nothing. Reconnect everything and plug to lap top and it doesn’t even recognize it, like if it was completely dead.

Hi @sylvaincvei5277

it appears the problem is not the screen, it may be the power. Have you located where the power is going using a power meter? Depending on where the power ends that's the broken part

Cheers!

Not much experience testing, I don’t have a power meter, just a multi meter. Any help on how to test would be greatly appreciated.

Hi @sylvaincvei5277

Since you do not have a power meter and just a multi meter, it works as well. You're just checking for where power is going.

Ok so I have a power meter hooked up and the amp measured is .4amps looks too low but not sure the specification I am suppose to have?

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is an error 9 check about it online

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How do you know its error 9 ?

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