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iPhone 3G是第二代iPhone。型号A1241,有8或16 GB容量,和炫酷的黑色或洁白的白色塑料背面。修复比第一款iPhone更简单。需要螺丝刀、撬撬工具和吸尘工具。

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iPhone 3G Screen isn't showing up on iPhone.

As of right now, I am using two iPhone 3G's, but both screen won't work at all. I've noticed that the problem isn't the actual screen, I think it's the logic board (I think that's what it's called?) where the camera, SIM tray, etc. where all the connectors (1-6) connect.

It all started with my first iPhone 3G, which is a white one. I took it apart because I was replacing the back cover (for obvious reasons, it's badly scratched) and as I put everything back, EVERYTHING will work except the screen. If I plug it into the computer, I will hear the beep thing, so I know it's on. And I switched the vibrate button up and down, so it vibrates. So I know it's on for sure.

I got upset because I didn't know what the problem was, and I kept searching everywhere. So I took apart my other iPhone 3G (black) up to the logic board. Which means I basically only took the screen off. I connected the black iPhone 3G screen to the white iPhone 3G but it didn't work as well. So I did vise versa (white iPhone 3G screen onto black iPhone) and it worked.

In my mind, I thought, it couldn't be the screen then, so I took out the logic board of the black iPhone and switched it with the white iPhone. Now both doesn't work.

I really don't get what I did wrong, and I am so upset and confused. BOTH the black iPhone and white iPhone screens won't "show up".

PLEASE HELP. ANY suggestions are appreciated.

(The black iPhone is my brother's, so if I don't fix it, my brother won't have a phone either.) :/

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did you slide to switch off the phones before swapping the lcd's? you may have inadvertently toasted them otherwise, in which case you'll need 2 new lcds! is there any image at all on the screens? if it is still showing a faint sign of home screen or symbols then you may have blown the back light which is on the motherboard and expensive/difficult to repair.

you could try another/friends phone......but be sure to power off properly to make sure you don't blow their screen!

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try putting the working screen in the other phone then you'll know if it's a dead lcd or backlight on the motherboard.

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I fixed the black iPhone by rearranging some connections somehow so there's display on the black iPhone. I tried doing the same thing on the white iPhone but didn't work.

Oh dang, I made that stupid mistake, I never turned off the iPhones before I swapped the LCD's. I didn't think that would be use. Ugh.

The white one used to have faint signs of the home screen or symbols but then all of a sudden, it just stopped displaying.

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I just tried restoring the white iPhone, but it didn't work. Still no display. ):

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I think it's the backlight on the motherboard... Any way I can fix that?

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from everything i've read a fix is expensive or only for the brave with fab soldering skills. marcus has put a link on one of his answers about this. search the answers for dark screen backlight.

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I searched and I can't find the link?

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Try to DFU mode and restore the phone. That might help. I heard about some cases where this was necessary.

If not let us know if you fixed it and how.

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The LCD is not plug-and-play compatible. Your need to restart the phone after connecting the LCD. Hold HOME+POWER Button till it restarts.

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POWER=SLEEP Button

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I did that. It didn't work.

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