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Repair information and guides for the iPhone 6 Plus that was released on September 19, 2014. Model: A1522, A1524

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Why power supply shows a current of 0.25A without pushing power button

Hello

So , I want to replace the screen , and first i want to check if the phone works with power supply , i put the voltage 3.7

when i connect the power supply to the battery terminals it shows a constant current of 0.25A before i even push the power button , and when i push the power button , the Amp meter moves slightly and then stand still , the screen is black , nothing changed

any explanation for that and how to fix it ?

thank you

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Yes multiple causes are possible here.

But you need to provide more history as in why do you need to replace the screen, was it repaired before, liquid damaged, or dropped hard? Or bent?

And how much is it drawing from USB charger?

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hey @rany

yes it was dropped hard , i received the phone and it wasn't turning on , so i changed the damaged screen since i found that the cable was cut off from screen , put the new one and tried to see if it works , but then found the constant 0.25 A problem

can you tell me please how to check how much is it drawing from usb ?

thank you

by

You need a USB amp meter. Google it.

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My USB amp meter was the best $5 I ever spent. Such a cheap tool but it is such a huge help. Meanwhile, my fancy power supply is over there staring at me, asking why I don't show it love anymore.

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DCPS and Amp meter have different functions. But if I had to choose for some unlikely reason, then I'd keep the amp meter.

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