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現在のバージョン作成者: Ben ,

テキスト:

Try turning on the phone with the front camera unplugged as that may cause red screen of death boot loop.
 
Another thing to note is the two screw holes below the screen connector area on the logic board. If longer screws are put into that hole or overtightened the phone may have long screw damage meaning the circuit traces in that screw hole have been damaged which can cause this issue too.
 
This may sometimes be hard to spot without looking into those screw holes under a microscope.
 
In most causes it may require micro-soldering / board-level repair work done to it to get it working again.
 
Sometimes even a restore / update via iTunes / 3UTools can fix it too.

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オリジナル投稿者: Ben ,

テキスト:

Try turning on the phone with the front camera unplugged as that may cause red screen of death boot loop.

Another thing to note is the two screw holes below the screen connector area on the logic board. If longer screws are put into that hole or overtightened the phone may have long screw damage meaning the circuit traces in that screw hole have been damaged which can cause this issue too.

This may sometimes be hard to spot without looking into those screw holes under a microscope.

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open