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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no power after replacing screen

i followed the ifixit guide to replace the screen. Upon completion, i went to turn phone on and it would not turn on. Thinking that i did not properly connect battery i re-connected the battery. tryed to turn phone on again, and with much dismay still no power. hooked the phone charger up to it and it vibrated but still no power. i am at a loss as what to do or what to check. and yes i made sure that the sleep switch was off.

Answered! View the answer I have this problem too

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Sorry if this post came up more than once, my internet kicks out every time i submit.

If the phone vibrates, its got power. Its 1 of 3 things.

1. The LCD you bought was shipped broken, the testers are cheap. Wouldn't be bad if it saves you $40/$50. Please don't buy cheap screens. You'll notice the difference in the display.

2. The flex cable is loose. Take it apart, disconnect and reconnect the cables and make sure they're snapped down. They should snap, sometimes there's a little yellow tape on the LCD that gets moved from holding down another component. Make sure the motherboard and the cable itself has nothing in or around it.

3. You probably ruined the LCD flex while installing the glass. Those cables are thin, and can easily be ruined. Hopefully its not the case. I've been repairing phones for years, i've accidentally ruined a few while rushing.

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I had this same issue. If you are positive the new screen is not the issue. The problem is definitely because the phone is outdated and needs to be updated.

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