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Saturday 16 February, 2019 |

Repair Ideas For iPhone 7 Not Charging Problem

The iPhone 7 has no response when plugged the charger, the iPhone 7 won't charge. Apple iPhone charge problems are common, it could be caused by a software issue or a hardware issue, here are some repair ideas for fixing this iPhone 7 not charging problem.

- Software Aspect

If the iPhone 7 not charging problem is caused by software error, we try to fix it by following repair ideas.

1. Restart iPhone 7

When the iPhone has some problems, our first reaction was to restart the iPhone, it turns out that we can solve a lot of simple software problem by restarting.

In order to restart the iPhone, please press and hold the iPhone power button until the slider appears, drag the slider to turn your iPhone 7 completely off, and then press and hold the iPhone power button again until you see the Apple logo.

2. Check iPhone lightning port/cable/charger

If the iPhone lighting port is covered by some debris, then it will affect the connection between the cable and iPhone, so it can't change properly. We can use Dustless Cotton Swab to clean up the iPhone lightning port.

If the iPhone lightning cable is damaged, then the iPhone won't be charged, we can try another good quality iPhone lightning cable.

If the iPhone charger is damaged, then the iPhone also won't be charged, we can try to use another good quality charger.

3. Update IOS

Sometimes, IOS bug also will cause iPhone not charging problem, we can try to fix by updating IOS.

In order to update IOS, please go to Settings-> General-> Software Update-> Download and Install, or we can update it via iTunes.

4. DFU restore iPhone

DFU restore is the last way we can do in the software aspect, DFU restore can solve software problems in the deepest possible, because it will erase all settings and data for the iPhone, so we need to backup the iPhone before we restore it.

In order to DFU restore the iPhone, put iPhone 7 in the DFU mode, and then use iTunes to restore it.

- Hardware Aspect

If the iPhone 7 not charging problem is caused by hardware error, we try to fix it by following repair ideas.

Firstly, we need to disassemble the iPhone 7, remove the iPhone display assembly, disconnect the iPhone battery, and then remove the iPhone motherboard.

1. Replace the iPhone USB control tube (U4001)

2. Replace the iPhone USB charge IC

3. Plug the iPhone lightning cable, and then use digital multimeter to measure the 5V charge voltage to check if it's normal or not, and test the capacitor (C2101 and C4006)

4. Measuring the Q4001D voltage and capacitor C2101

5. Measuring the Q4001S voltage and capacitor C4006

6. After finding the problem, we can use the right way to repair it (replacing the damaged components, soldering the jumper wire, etc.)

Note:

We need to use the original or good quality iPhone lightning cable and charger to charge iPhone to avoid the damage to the iPhone battery.

by Bellin

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