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2014년 9월 19일에 출시된 이 5.5” 스크린 iPhone은 iPhone 6의 큰 버전입니다.

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Why/how does vertical lines just fade away?

Hi!

No problem here, just asking a question. I changed battery+screen on my 6 plus, after that i hade 4 vertical lines running along the screen. Now, 2 days later the lines has just dissapeared. How does this happen? Why? how does it work?

Im happy that the lines faded away, just confused as of how..

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1. Bad Connection

Reason: first thing you should do is check the connection between the flex cables and the logic board. If the connectors are obstructed by dust or debris, try to clear them away with a brush and rubbing alcohol. If the connectors are damaged or the flex ribbon is bent over 90°, well, a replacement is needed. After checking those, reconnect the flex cables to the motherboard, making sure the connectors are properly connected.

iPhone flex.jpg

Solutions: do not force the connectors together until you are sure they are properly lined up; do not bend the flex ribbons during testing and installation.

2. Static Charge

Reason: aside from a bad connection between flex ribbons and the logic board, ESD (Electro-Static Discharge) is another big cause of vertical lines. Too much ESD produced by either the product itself or by human during the test or installation.

Solutions: reduce any static charge by using a body static remover (or touching a ground) before proceeding with any testing or installation. Wear an anti-static bracelet and keep an ion fan on during the repair job.

anti-static.jpg

3. Damaged IC

Reason: possibly the IC on the display is damaged if both of the above methods don’t help. Check the part on the top left and right corners in particular. If there’s any damage, or one of them has been crushed or the IC has been damaged then your part is defective. You’ll have to replace the screen with a new one.

iPhone screen2.jpg

Solution: the screen has to be replaced if the IC was broken. Do not squeeze the IC to avoid damaging it.

Lastly, be sure to use an extension flex to test the screen before reassembly to prevent unnecessarily folding of the flex ribbons, as well as to prevent damage to the fragile connectors.

Hope It Works

Thanks

Varun

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Henrik Engdahl 님은 대단히 고마워 할 것입니다.
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