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Released on September 19, 2014, this 4.7" screen iPhone is the smaller version of the iPhone 6 Plus. Identifiable by the model numbers A1549, A1586, and A1589.

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Boot loop after battery replacement

So someone dropped a phone off to me telling me they are stuck in a boot loop. I tried restoring and updating the iPhone and the iPhone disconnects while trying to do this. The customer then told me he tried replacing a battery and the first time the boot loop would go to a red battery and restart. He replaced the battery again and now it just shows the apple logo and restarts. I put the original battery back in and it still happens. I have been in revovery mode, DFU mode, I have taken the screen off and tried, unplugged the battery and plugged back in, unplugged the battery and held the power button dow for a while, tried holding home and power and I also tried using other software. When it tries to install or do any task it disconnects. It gives the error 4013.

Has anyone ran into this before? Any idea what could be done to fix it? Im not sure if this could be pry damage from him replacing the battery himself, but home and power do work.

Any help is appreciated!

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Error 4013 is emmc nand flash error check pp1v8/pp1v8sdram for shorts. All nand errors 3,9,14,4005,4013,4014 are pp1v8/1v8sdram related if no short is present then you will need to change the nand and program your sn to a new one

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@tonyhamre how do i know where pp1v8 is without boardview?


I will show you tomorrow when I am in work. Alternatively you will find schematics and board view on 4shared


@tonyhamre Please show me tomorrow, that would be awesome. Also, do I need a desktop PSU to do this? All of the videos when I started learning this showed them connecting a wire to the battery connector. Couldn't I just use the battery or another the charger?


@tonyhamre did you forget about it?!


Jetlabb contact me on fb i will show you where to test as it is simpler to send information. page is iHardware Repair. all you will need is a tester that has diode/beep mode and voltage


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