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Repair information and guides for the Apple iPhone 5s that was announced on September 10, 2013. Model: A1533, A1453, A1457, A1528, A1530, A1518

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iPhone 5S dead after U2 ic replacement.

I have an iPhone 5s that battery was draining very fast, this happened after using cheap iPhone chargers. I decided to replace the U2 ic, after job done, phone started, booted to IOS and worked fine. I tried to charge this and when I put cable on the phone the screen got black and phone went completely dead. I replace the U2 chip again and no sigh of life. Can someone help me, why is this happened? Why is this worked only for some minutes? I burn any resistor? What parts need to test to find the problem? Thank you!

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Did you actually check battery health using 3utools or coconut battery?

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battery is fine

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Try replacing the Q2 IC (4 PIN IC), right above it. You can harvest a good one from an old board, if you have one.

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Ι don't have an old motherboard, I will order a new IC and I will come back with the result.

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johnfl21 will be eternally grateful.
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