Saturday, July 20, 2019

iPhone screen doesn't display - how to fix?

After pressing the iPhone power button, the Apple logo doesn't appear as usual, and the iPhone screen keeps black. What's wrong? Why iPhone screen doesn't display? How to fix?

As we know, the iPhone software problem can cause iPhone black screen problem, meanwhile, the iPhone screen itself problem and iPhone motherboard problem also can cause iPhone black screen failure. Here are some suggestions to fix it.


1. Force restart iPhone

Different iPhone models have difference methods to force restart.

- Force restart iPhone 6S and earlier

Press and hold the iPhone power button and iPhone home button at least 10 seconds, release both buttons when you see Apple logo appears on the screen.

- Force restart iPhone 7 or 7P

Press and hold the iPhone power button and iPhone volume down button at least 10 seconds, release both buttons when you see Apple logo appears on the screen.

- Force restart iPhone 8 / 8P / X

Press then release the iPhone volume up button, immediately press then release the iPhone volume down button, and then press and hold the iPhone side button till you see an Apple logo appears on the screen.

2. Update IOS

Generally, there are 2 ways you can update IOS, one is update it on the iPhone, but in this case, we don't choose it, because the iPhone screen doesn't display, so we have to choose the second way, use iTunes or other third-party software to update iPhone IOS.

- Connect iPhone to the computer by iPhone lightning cable
- Update iTunes to the latest version
- Open iTunes and select your iPhone
- Click Summary, and then click Check for Update.
- Click Download and Update

3. DFU restore iPhone
DFU restore iPhone will erase all settings and data on iPhone, so it can most deeply to fix iPhone software problem.

Before you are going to restore iPhone, you should backup your iPhone.

- Connect iPhone to the computer by iPhone lightning cable
- Update iTunes to the latest version
- Back up iPhone by iTunes
- Put iPhone in DFU mode
- Use iTunes to restore iPhone

After tried above the software solutions, if the iPhone LCD still shows black, then you should check iPhone hardware parts, such as the damaged iPhone display screen or damaged iPhone motherboard.

4. Replace new iPhone display screen

If the iPhone display screen is damaged, you can't fix the black screen problem by software solutions, we can try to fix it by replacing the new iPhone display screen.

- Use phone opening tools to disassemble the iPhone
- Remove the iPhone display screen
- Install the new iPhone display screen
- Power on iPhone and test it

After replacement, if the iPhone screen stills no display, then possible it's the problem of the iPhone motherboard.

5. Repair iPhone motherboard


As we know, the iPhone motherboard is the core part of the iPhone, there are many components, some components can cause iPhone no display problem, such as iPhone flash IC, iPhone backlight IC and so on.

In order to repair find out the faulty part on the iPhone motherboard, we need to disassemble the iPhone, remove the iPhone motherboard, and then use DC power supply or digital multimeter measure the iPhone motherboard to find the faulty part,so that we can fix it.

For replacing iPhone screen and repairing iPhone motherboard, the phone repair skills and phone fix tools are required; if you are not the professional repair man, please don't do the last 2 suggestions by yourself, just contact Apple Care or iPhone repair shop.



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