Rep: 71
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Hello,
I recently replaced my screen on my iPhone 7. It won’t turn on. I’ve tried charging it and checking the cables. It recognizes it in iTunes. What can I do? Help!
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Rep: 43
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in the same boat, going to continue with problemsolving. swapped back to old screen, that one is not working either. hopefully the connection for power is not damaged.
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Ok, so ran through some stuff. I replaced the old screen, nothing. So I did some research. Basically, I pulled an amateur move and forgot to unplug the battery.
Now, when one forgets to unplug the battery, one of three things will happen when continuting with a repair.
1. Your IC Backlight will fry when trying to connect the ribbons and you'll have to microsolder a new one(like $2 but a huge pain to do). When connecting the ribbons when the battery is connected allows the chance for the pins on the ribbon to mix match and create a bad circuit.
2. You'll have to do the screen replacement repair through and through WITH the battery disconnected form the start.
3. You've shorted more than the IC backlight out and would probably be better off biting the bullet and taking it to an Apple store.
I had luck doing the whole process over again with thorough ground technique, isopropyl clean hands, and a good ESD station/tools.
Good luck, and give us an update!
This ^. Always disconnect the battery. The other thing is the cable is fragile. You want to give it extensive care when connecting it and attaching the screws. Which is another thing to look at out for. Make sure the screws are in the right location, otherwise it may damage the phone and you'll need some board level repair.
Yeah. That’s probably it. Thanks. Question, where’s the backlight IC?
Also, I tried to plug it into iTunes. iTunes recognized it. Does that change or mean anything?
Hey John,
Sorry for the delay. School and work have kept me quite busy. Have you solved your problem yet? If the phone connects to itunes then you are probably in that "backlight IC fry" group. Do me a favor and turn your phone on and shine a light on the screen while looking at the screen from an angle. Hopefully you see a dim Apple logo. If you do, this is a back light issue now. Let me know what you find.
Sean
Rep: 25
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Just after having that problem and fixed!
Just disconnected the battery and reconnected, all working grand now.
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thanks a lot dude!!
This worked for me too.
Rep: 1,8k
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Try putting the old screen back on and let me know. If it works try getting another screen replacement.
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Same story. I put back the old screen and it worked. So what's wrong with the new lcd? Faulty?
If that is happening then in your particular case, it's a faulty new lcd
Hi, i have done the same thing. I didn't disconnect the battery and the screen won’t turn on. Put the old screen back and still doesn't work. Can someone help please.
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ive replaced the screen camera and it worked for a little bit then stoped working
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Same hapend to me
replaced iPhone 7 screen and Home button forgot to unplug battery, phone does not turn on tried everything then I bought another screen Replacement and unplugged the battery this time connected the screen and then reconnect the battery still nothing then I plugged it in and found out that the battery was dead just needed to charge
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So im in this boat right now, I made sure to unplug the battery before i did a front camera replacement and i removed the screen aswell. I put the camera back on and then i put the screen back on as well. plugged the battery back in and it didnt turn on, I feel my phone vibrating from the charging port. Any advice?
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Also i tried 2 other screens that do work in fact, Would it be the motherboard?
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