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Repair information, troubleshooting tips, and guides for the sixth iteration of Apple iPhone, announced on September 12, 2012. Model: A1428, A1429

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How can I tell if my iPhone turns on without a screen

I have two iphone 5's without screens. One was given to me from my brother a while ago after he broke it. (now that I know how to replace screens and do other iphone repairs) I want to see if the problem residied in only needing a screen replacment or if the issue runs deeper.

Unfortantly he cant recall how it broke but by the exterior (broken screen/ rear camera) I beilive it was crushed or dropped. He said "idk i think the home button didnt work" maybe he meant power button but again im not sure.

As for the other phone also without a screen which was given to my boyfriend by a buddy of his from school who said he needed a screen replacment and my boyfriend offered to fix it but his friend only bought the glass and not the whole digitizer lcd assembly. Long story short his friend got a new phone while he was back home visiting family so we still have the phone.

I dont want to go buying new screens if the phones have issues beyond that.

Is there anyway I can tell if the phones work by charging them or connecting them to a pc with itunes? Both screens were black with no sign of life that im aware of. This was two years ago.

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Never attempt a glass replacement on a phones that have the LCD and glass fused together with really strong glue that requires extremely careful heating and a long time to separate the glass.

Now for the signs of the phone turning on, put the phone in vibrate / silent mode via the top left side switch and then plug the phone into a charger.

The phone will be most likely flat depending on how long it will be flat for you may need to charge the phone for 30 minutes to an hour.

Once it turns on it should vibrate every time the charger is plugged in.

You can alternatively plug the phone into the computer and see if the computer responds at all from it via device manager in windows or iTunes.

It's pretty much a 99.9% chance the person trying to do a glass only when they haven't done it before will damage / crack the LCD, the other issue is how will the glass be put on without any dust which is very hard as well (Loca / OCA glue) is required to put the glass on properly.

So yeah in a nutshell, always do a full screen replacement over glass only.

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