iPhone went DEAD after disconnecting LCD without removing the battery.

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iPhone 6 Plus

2014年9月19日发布的iphone 6 Plus有着比iphone 6大的5.5英寸屏幕。

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Omer @elshrief

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发帖于: 2018年3月1日

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iPhone went DEAD after disconnecting LCD without removing the battery.

Hello..

I was replacing my LCD screen, but at the first trial, there was a faulty connection, so i had to disconnect and reconnect the screen again but this time i forgot to disconnect the battery first,..

After that the screen went dead, all in black, but i can receive calls and Itunes is picking up phone ...

Any ideas?

Update:

The phone is not responding to anything, even the sleep button should decline a phone call, but it doesn't, also the volume buttons aint responding and still a black screen.

I've checked for the backlight problem, when focusing a Flash light on the screen, I see nothing, no dim images or anything..

Thanks in advance...

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Minho @refectio

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You most likely blew the backlight circuit on the logic board. When you connect/disconnect the screen with the battery connected, it is possible to short the backlight circuit as the pins are adjacent within the connector. If you want to be certain, shine a bright flashlight on the screen when you connect it to an iTunes enabled computer. If you see a dim image, then the backlight circuit is blown. Or try your original display to see if the problem remains.

The only way to fix this is to have the backlight circuit repaired and this requires a micro-soldering repair. This is not a typical DIY repair unless you already have the proper tools and experience as the component density on iPhone logic boards is very high.

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Well, I've tried another new screen, but still the same problem,

Tried to focus a bright flash light when i connect to itunes also tried when receiving a call the phone is vibrating but still black screen., see nothing, there is no dim image or something like that, just black screen,

由 Omer 完成的 2018年3月1日

Okay, can you confirm if the backlight is on. Once again, connect the phone to an iTunes enabled computer and look at the edge of the screen (from the side if you will). If the backlight is on, you will see a bit of a glow. You can also do this in a darkened room.

At this point, you either have a backlight issue (which your tests seem to negate) or an LCD driver issue. Either way, you will need a micro-soldering repair but at least you will know.

由 Minho 完成的 2018年3月1日

No backlight, See nothing when connecting to Itunes or calling, still blackscreen..

seems to be an LCD driver issue.. :\

由 Omer 完成的 2018年3月1日

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Well, I've tried another new screen, but still the same problem,

Tried to focus a bright flash light when i connect to itunes also tried when receiving a call the phone is vibrating but still black screen., see nothing, there is no dim image or something like that, just black screen, — Omer
Okay, can you confirm if the backlight is on. Once again, connect the phone to an iTunes enabled computer and look at the edge of the screen (from the side if you will). If the backlight is on, you will see a bit of a glow. You can also do this in a darkened room.

At this point, you either have a backlight issue (which your tests seem to negate) or an LCD driver issue. Either way, you will need a micro-soldering repair but at least you will know. — Minho
No backlight, See nothing when connecting to Itunes or calling, still blackscreen..

seems to be an LCD driver issue.. :\ — Omer

iPhone 6 Plus

iPhone went DEAD after disconnecting LCD without removing the battery.

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