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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LCD and Touchscreen is non responsive

I have searched quite a bit on this one...hoping for some enlightenment. I apologize in advance for the length of the post, but trying to be descriptive as possible. My friend's daughter dropped her Iphone 3G in the street. Not sure if it got ran over or not, but most likely not. At the time, LCD was working, just cracked screen. I ordered screen/digitizer assembly. By the time it arrived, the IPhone's battery was dead, so no sense in powering down. Upon succesfully installing the new screen/digitizer and charging, the picture on LCD was very washed out, but functional. I assumed one of the connectors was not fully hooked on. I disassembled, check cables, reassembled. No screen at all. Did hard boot with home & power button. Alas! Screen reappeared, but all white :( no apple logo, no nothing, just snow white screen. Again, disassembled to check my cables again. Reconnected 1 & 2. Powered back up. Alas! Apple logo and full boot. Realizing I did not connect number 3 in the process, shut down again and was about to reconnected 1,2 & 3 cables. While putting in number 1, accidentally hit the power on button. I'm worried this had something to do with my current issues. Powered down immediately, continued connected cables and refired. Absolutely nothing. No white, no logo, just black. The mute switch is causing vibration and itunes is recognizing the phone, but absolutely no picture. Tried numberous hard restarts, cleaning connectors, unscrewing motherboard and separating from battery in an attempt to "reset" iphone and even tried a restore in itunes. Nothing. Still has vibration and sound, just no screen. Any ideas? All connectors look clean with no missing/bent or otherwise faulty looking connections. Any help is much appreciated.

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I would take the logicboard out of the case for a few hours. It tends to reset the phone again..have had this several times and it works for a black screen. the only other cause is that you have broken another LCD. If you have a known working iphone 3g (and a willing guinea pig) you could try swapping the dodgy LCD to it..if it still doesn't work there then the problem is LCD...

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I'll try the logicboard tonite and let it sit overnight (I only took it out for a few minutes before). I hope the LCD isn't broken, and unfortunately, I have no guinea pig 3G to try. The original LCD was fine, and I (I'm sure you've heard this before) was VERY careful when disassembling the phone, so I'm not sure how it could have broken, although, I'm sure anything is possible. If the logicboard route doesn't do it, and before I order a LCD, is it possible it could be the connectors on the motherboard for cable 1 or 2 even though they look fine? Not sure how to test that short of finding another 3G to operate on.


a really good light source and a strong magnifying glass to check that the pins are attached onto the motherboard/no cracks or dirt shorting the pins. Honestly I have had this happen a few time I knocked 2 pins on the connector 3 with a screwdriver! thought I'd killed the phone, black screen, no response to any resets. Took board out of phone, drank wine, swore a lot, had nightmares about cost of repairs.Next day put board back in and works again!


I'll try that tonight. I didn't get a chance last night due to my lack of proper equipment (wine). Thanks for your help and I'll keep you posted.


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