Share How to Repair iphone 5S Battery Gets Hot

1. How to Repair iphone 5s Battery Gets Hot
iPhone as a top smartphone in the world. Whatever the
version is always sounds deluxe. However, if your
iPhone getting hot when you are charging it, that isn’t
fun anymore. This problem will not only disturb your
phone activity but can also lead to iPhone damage. Many
iPhone users reported the same thing, so you are not
alone. Here, we are going to share the solutions to get rid
iPhone overheating issue.
PROBLEM:
The battery gets hot when charging and it is not durable.
Plug the charger to charge for half an hour, finding that
the iPhone is very hot and the temperature is nearly 70℃.
Turn if off at once and tear it down to test.
SOLUTION:
1. First, replace the Charge Jack cable, but the problem is
still the same. Tear down the motherboard and measure
each relevant circuit.
2. Measure the diode data to ground of each pin, such as
charging tube Q2, USB Control chip U2 and USB
interface J7. We find that diode data to ground of pin
26th of USB interface J7 is abnormal which is larger than

2. the normal one 20. The location of pin 26th of USB
interface J7 in bitmap is shown in picture 1-1.
3. After analyzing the circuit diagram we know that pin
26th is connected to USB management chip U2. So
replace U2 chip and turn on to test. But the problem is
still the same.
4. Then we continue to check the rest circuits. Remove
Q2 and short connect the D pole and S pole on solder pad,
as shown in picture 1-2. The location of Q2 is shown in
picture 1-3.

3. 3. Recharge it and test. IPhone is no longer hot and
trouble is removed.