Second generation of iPhone. Model A1241 / 8 or 16 GB capacity / black or white plastic back. Repair is more straightforward than the first iPhone. requires screwdrivers, prying, and suction tools.

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New LCD screen goes white but it works fine if pressed.

Ok,

My neice threw her iphone 3G at&T so I had to replace the following parts; Full front LCD screen, REAR cover, Power, mute, volume, buttons and corresponding flex cables.

Now, when I try to set the front glass into place with the body, it refuses to seat level, one corner is either sitting low, or the other 3 corners are sitting high.

BUT. the main problem I have is this, after making sure all the LCD connectors are correctly connected, the LCD is white. BUT if I press down on the front screen above where the LCDconnector is connected to the mainboard the display pops on and as long as I keep pressure applied to that spot the phone works 100% fine, but, as soon as I let off, the screen goes white again. It is almost like the connector is not staying fully connected but when I open the phone and check the connection, it is nice and tight. Anyone got any advice on this issue.

Answered! View the answer I have this problem too

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Rear replacement housings are almost always a bad fit, the only ones I have ever managed to fit properly are the ones with the bezel already attached to it.

As for the LCD try to make sure no dirt or debris is in/around the connectors on both the board and the LCD flex cable. It may be worth cleaning them both with isopropyl too (make sure to use 99% or above and a clean cotton bud or piece of microfiber cloth).

If this doesn't work then the LCDs ribbon cable may be damaged and the whole part should be replaced.

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The reason why the corners don't sit right is because the rear housings that are available are aftermarket.

I actually stopped providing rear housing replacement in my repair shop because of this. I could never get them to sit properly.

It does sound like the LCD connector is not seated properly. Have you tried a hard reset after closing the phone up?

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Gary will be eternally grateful.
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