Galaxy Z Fold 4 Black Screen of Death? Try These Fixes

If your Samsung Galaxy Z Fold 4 screen stays black but the phone seems powered on, the cause can be a temporary system crash, battery drain, or display-related hardware fault. Follow these methods in order to bring the display back and isolate whether the issue is software or hardware.

Method 1: Force Restart the Galaxy Z Fold 4

A forced reboot can recover the phone from a system freeze that leaves the screen black. This is the quickest fix for a temporary black screen event.

1. Press and hold the Volume Down and Side/Power buttons together.
2. Keep holding both buttons for about 10 to 20 seconds.
3. Release when the Samsung logo appears.
4. Wait for the phone to finish rebooting.
5. Unlock the device and check the display.
6. Test opening a few apps.

Method 2: Charge the Phone and Perform a Forced Reboot Again

Deep battery drain can mimic a black screen of death. Charging first ensures the device has enough power to boot the display properly.

1. Connect the phone to an original Samsung charger.
2. Charge for at least 20 to 30 minutes.
3. While charging, press and hold Volume Down + Side/Power for 10 seconds.
4. Release buttons when the Samsung logo shows.
5. Let the phone boot completely.
6. Check if the main and cover displays turn on.

Method 3: Boot Into Safe Mode

Safe Mode disables third-party apps that may crash the system UI and cause a black screen. If the display works in Safe Mode, an installed app is likely the trigger.

1. Turn the phone off completely.
2. Press and hold the Side/Power button until the Samsung logo appears.
3. When the logo appears, press and hold Volume Down.
4. Keep holding until boot finishes.
5. Confirm Safe mode appears at the bottom-left corner.
6. Uninstall recently installed apps and restart normally.

Method 4: Wipe Cache Partition in Recovery Mode

Corrupted system cache can cause boot and display instability after updates. Wiping cache partition refreshes system cache without deleting personal data.

1. Power off the phone.
2. Connect it to a computer with a USB cable if required for recovery access.
3. Press and hold Volume Up + Side/Power until recovery menu appears.
4. Use volume keys to highlight Wipe cache partition.
5. Press the power button to confirm.
6. Select Reboot system now and test the display.

Method 5: Check Display Behavior with External Signs

This helps determine whether the phone is running while only the screen fails. Identifying this difference is useful before a factory reset or repair request.

1. Call your phone from another number.
2. Check whether it rings or vibrates.
3. Connect the phone to a charger and watch for LED/sound/vibration response.
4. Try using fingerprint unlock by touch position.
5. Open and close the fold to check if either display responds.
6. Note your findings for service diagnostics.

Method 6: Factory Reset via Recovery Mode

If software corruption is severe, a factory reset can restore normal boot and display behavior. This erases all data, so use it only after backup or as a last software step.

1. Turn off the phone.
2. Boot to recovery mode using Volume Up + Side/Power.
3. Select Wipe data/factory reset using volume keys.
4. Press the power button to confirm.
5. Select Factory data reset.
6. Choose Reboot system now after reset completes.