Released on September 19, 2014, this 4.7" screen iPhone is the smaller version of the iPhone 6 Plus.

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Not turning on after replace

I was fixing an iPhone 6 today with bad lcd and during the repair the screen stopped working on the phone. I then tested a fully functional screen on the device and it didnt turn on, afterwards i put the bad screen on a working iphone 6 and the screen worked as well as the other. How can i fix it so that the device that neither screens work on can work

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It sounds like the backlight circuit may have been damaged when you replaced the screen. Did you disconnect the battery prior to disconnecting the LCD connection?

Try the following:

  • Is your phone identified by iTunes when you plug a Lightning cable to a iTunes enabled computer?
  • Shine a bright flashlight on the screen. Can you see a dim image

This will point towards a backlight circuit issue. It is usually a blown backlight filter. This requires micro-soldering. If you don't have the proper tools or experience, then consider finding a reputable shop that does micro-soldering repairs.

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I disconnected the battery cable before starting

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Its also not recognized by itunes

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The phone not being recognized by iTunes could be caused by a defective Tristar IC. This would also affect the charging of the battery. Can you measure the voltage of the battery with a multimeter? Unplug the battery and measure directly on the battery's connector. It should read 3.8V - 4.2 V.

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@Minho i put a brand new battery in.. it gets hot on the black part below the connecters for the lcd

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Can you measure the voltage of the battery with a multimeter? Unplug the battery and measure directly on the battery's connector. It should read 3.8V - 4.2 V.

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Ty S will be eternally grateful.
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