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CDMA version of the fourth generation iPhone. Repair is straightforward, but the front glass and LCD must be replaced as a unit. 16 or 32 GB / Model A1349 / CDMA compatibility.

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White Screen After Screen Replacement

I have a white iPhone 4 model number A1349, which had a broken screen. I replaced the screen and after putting it back together it only showed a white screen with vertical black lines going across. I got the screen exchanged and the new screen also came out with a white screen. I thought i had screwed up for the second time but after the 3rd attempt, same problem occurred. I also have another att iphone 4 which would not turn on, so I decided to test the mother board with my white Iphone and only connected the charging dock and screen ribbons. The Att motherboard worked ( what a relief) and the screen showed a battery charging. So i take off the att motherboard and install the original motherboard from the white one the screen goes back white but on the other motherboard it works fine. Oh and i also fixed the power button.

What i have tried so far.

- Holding the sleep/wake button + home button for 10 seconds

- I connected it to itunes and was detected as in recovery mode and it restored it.

Nothing has worked so far! I have noticed that the screen goes black but in the center its and oval light with black and blue lines going across.

Any suggestions? The screen works on another motherboard why not this one??

Answered! View the answer I have this problem too

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1 Answer

Chosen Solution

Sounds like you have damaged the pins on the motherboard were the lcd connects.

Look and see if any of the pins are bent or missing

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I checked it out, everything seemed fine. I also heard siris or whatever voice and noise coming from iphone. Ill see if i can post a picture on here.


The phone is still turning on and going to the main screen that's why you can hear Siri but if all the screens are giving a white screen then it's definitely a board problem.


Anyway that can be fixed?


Yes someone that repairs boards could do this repair and replace the broken pins


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Jose will be eternally grateful.
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