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Repair information and guides for the iPhone 6S Plus that was released on September 25, 2015. Model A1687, A1634

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Power cycle and fingerprint reader not working

I recently replaced my iphone 6s plus screen (iPhone 6s Plus LCD Screen and Digitizer Full Assembly /New / Fix Kit / White) ... and after following the guides here, there are a couple issues: 1) Phone seems to go in a power loop / reset. Always restarting, asking for passcode. 2) Touch ID is not reading any fingerprints, (fresh OS install, trying to add a new fingerprint). Home button works, just wont allow me to register any fingerprints.

I followed the advise of a few different threads, nothing seemed to work. Put on the old (original, cracked) display, and everything works perfectly.

Oh, I kept my original home button... not a new home button.

Suggestions?

Thanks, Michael

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Are you using a new heat shield? (The large metal plate on the back of the display) If so I would recommend putting the old one back on then reinstalling the OS through iTunes. I’ve seen that replacing the heat shield can cause problems.

iPhone 6s Plus LCD Shield Plate Image

Product

iPhone 6s Plus LCD Shield Plate

$19.99

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1 Comment:

I think I may have found the issue. I did replace the heat shield as you mention, but no dice. When looking closer however it seems I bent / broke a couple of the pins on the home button connector (the one attached to the new screen). Ordered a new screen... we'll see how it goes. (drats, 75 bucks down the drain...)

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Michael Lopez will be eternally grateful.
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