Samsung Galaxy Z Flip 4

How to Fix Black Screen of Death on Samsung Z Flip 4

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The Black Screen of Death (BSOD) is a common issue that many smartphone users encounter. The problem occurs by the phone screen turns black and refuses to display anything, despite the device being turned on. 

For Samsung Galaxy Z Flip 4 users, this has been a distressing issue. There are a lot of users that have already reported this and some of them have tried various solutions but failed to fix it.

If you are already experiencing this issue, then In this guide, you will find the right solution to tackle the Black Screen of Death on your Samsung Galaxy Z Flip 4. Let’s get started.

What Causes the Black Screen of Death

The BSOD on your Samsung Galaxy Z Flip 4 could be a result of both hardware and software issues. Often times this happens due to software problems and those can be fixed by applying the correct fix.

Here are the most possible causes of BSOD:

  1. Faulty software: A glitch or bug in the operating system causes your screen to go black. This is an outcome of a system crash or a failed software update.
  2. Motherboard issues: If the motherboard of your phone is damaged or malfunctioning, it leads to the black screen issue. This is usually a more serious problem and requires professional repair.
  3. Malfunctioning third-party app: a poorly designed or buggy app causes system-wide issues, including the black screen of death.

Since hardware problems typically require professional attention, this guide will primarily focus on addressing software-related causes of the black screen issue.

Fix 01: Do a Forced Restart

Sometimes, the black screen of death can be resolved by simply performing a forced restart. This is because a forced restart often removes minor software glitches that are causing the problem.

Here’s how to do a forced restart on your Samsung Galaxy Z Flip 4:

  1. Press and hold the power key until you get the power menu.
  2. Tap on the restart button.
  3. Confirm by tapping on the restarting button again.
Unfold the Phone and Press the Power Button

If your phone restarts and displays the User Interface (UI) without the black screen, it indicates that the problem might have been a minor software glitch. To avoid the same problem from recurring in the future, we recommended you perform a software update (Software updates often come with bug fixes that prevent issues like the black screen of death from happening again).

Here’s how to update your Samsung Galaxy Z Flip 4:

  1. Head over to Settings.
  2. Tap on Battery and device care.
Battery and device care1
  1. Tap on Software update.
Software update12
  1. Then, tap on Download and install.

Fix 02: Let the Battery Drain

If your Samsung Galaxy Z Flip 4 continues to display a black screen even after a forced restart, the next solution to try is to let the battery drain completely.

Since you cannot see anything on the screen, you need to know if your device has automatically turned off. To determine this:

  • The device will no longer respond to any button presses or screen touches, and you won’t feel any vibrations when trying to trigger haptic feedback. 
  • If you have any accessories connected, such as earbuds or a charger, they will also stop receiving power from the device.

Once you’re sure that your Galaxy Z Flip 4 has turned off, connect it to a charger. Pay attention to see if the charging animation displays on the screen. If it does, this is a good sign that your device is not entirely unresponsive and that the problem might be fixable yourself.

Allow your device to charge completely without interruption. This process takes a few hours, but it’s crucial to ensure that your device has enough power for the next steps. Once your device is fully charged, move on to the next solution.

Fix 03: Clear Cache Partition & Run Repair Apps

Once your device has fully recharged, you need to clear the system cache.

The cache partition is a storage area of your device that stores temporary data from apps and processes. This data could corrupt at times, leading to issues like the black screen of death. 

Clearing the cache partition often resolves these issues by eliminating the problematic data and allowing the apps to start fresh. To clear the cache partition, you’ll need to boot your device into recovery mode. 

Here’s how you can do it:

  1. Turn off your device.
  2. Plug a USB cable into the device.
  3. Press and hold the Power key + Volume up keys for a few seconds. When the recovery menu appears, release the keys.
  4. Use the volume keys, highlight the Wipe cache partition, and press the power key.
  1. On the confirmation prompt, select Yes and press the power key again.
confirm wipe cache
  1. Once the cache is cleared, you will see the recovery menu again. Use the volume keys, highlight the Reboot device now, and press the power key again.

After clearing the cache partition, it’s also a good idea to run the Repair Apps option in the recovery menu. This will fix any corrupted app caches and initiate app optimization. 

Here’s how to do it:

  1. Use the volume down button and highlight “Repair apps.”
Repair apps samsung galaxy recovery mode
  1. Press the power button.
  2. Confirm.

Once you’ve completed these steps, you can reboot your device from recovery mode. 

Here’s how:

  1. Use the Volume Down button to navigate to the Reboot System Now option in the recovery menu.
  2. Press the Power button to select this option.

Your device should now restart without the black screen issue. 

Fix 04: Do a Hard Reset

If all the previous fixes have failed to resolve the black screen of death on your Samsung Galaxy Z Flip 4, it’s time to consider a hard reset. 

A hard reset, also known as a factory reset, restores your device to its original factory settings by effectively wiping all data and settings from the device. This fixes persistent software issues that are causing problems like the black screen of death.

Before proceeding with a hard reset, it’s important to note that this process will erase all data on your device.

Just like in Fix 03, you’ll need to let the battery drain completely (as per Fix 02) and then boot the device into recovery mode. 

Here are the steps to perform a hard reset on your Galaxy Z Flip 4:

  1. Boot the device into the Android Recovery Mode.
  2. Use the Volume Down button to navigate to the “Wipe data/factory reset” option.
  1. Press the Power button to select this option.
  2. You’ll see a warning message about the data loss. Navigate to “Yes” using the Volume Down button and press the Power button to confirm.
  3. The device will now perform a hard reset. Once it’s complete, use the Power button to select “Reboot system now”.

If the black screen of death persists even after a hard reset, the problem could be a hardware issue, not a software one. In such cases, it’s best to take your device to a professional repair center to check and repair the device.

Fix 05: Take the Device to a Repair Center

If you’ve tried all the above solutions and your Samsung Galaxy Z Flip 4 still displays the black screen of death, it’s time to consider the possibility of a hardware defect. Hardware issues range from a faulty display, a malfunctioning motherboard, or even a damaged connector. These are issues that cannot be resolved without technical expertise and professional tools.

Repair Center

In such cases, it’s highly recommended to take your device to a Samsung authorized repair center. The professionals will diagnose the problem and fix it accordingly. If your device is still under warranty, the repair cost might be covered, saving you from incurring any additional expenses.

Before handing over your device for repair, remember to back up all your important data, as there’s a possibility of losing all the data stored in your device during the repair process. This is a precautionary step to ensure you don’t lose any of your important files or data.

Wrapping Up

We hope that this comprehensive guide has helped you to fix the black screen of death issue on your Samsung Galaxy Z Flip 4.

If you’ve followed all the steps and the issue persists, it’s likely that your device may have a hardware defect. In such cases, it’s best to take your phone to a professional repair center, especially if it’s still under warranty.

If you have any questions, need further clarification, or if there’s something you think we missed, please feel free to leave a comment below.


James is the leader of our website and brings a wealth of knowledge in hardware troubleshooting. With his background as a certified electronic technician and experience working at a smartphone repair shop, James has an intimate understanding of the inner workings of high-end smartphones. He will guide users through various steps to identify hardware issues and provide practical solutions. While James won’t dive into intricate technical details, he aims to empower users to take action and resolve hardware problems.