Display error or what happened?

[Zayyar2312]

Guys!!! are you happen when using the Facebook there is some black bar are appear In the screen . I was using the s25 ultra.

Is that normal or display error please guide me. I am very worried about it 

[Zayyar2312]

It happen like this

[ajuneeisnig]

Hey ajuneeisnig here
If black bars are appearing everywhere, even outside the Facebook app, it could indicate a display issue or software bug. Try these steps to diagnose it:

1. Run Samsung’s Display Test

Dial *#0*# in the Phone app.

Tap Red, Green, and Blue to check for display defects.

If the colors show fine without black bars, the display is likely okay.


2. Take a Screenshot

Capture a screenshot (Power + Volume Down).

If the black bars appear in the screenshot, it’s a software issue.

If they don’t appear in the screenshot but are still visible on your screen, it’s likely a hardware/display issue.


3. Boot into Safe Mode

Press & hold the Power button → Tap and hold Power off → Select Safe Mode.

If the black bars disappear in Safe Mode, an app may be causing the issue. Try uninstalling recently installed apps.


4. Check for Software Updates

Settings → Software Update → Download and Install.

Ensure you’re on the latest One UI 6.1 or One UI 7 (if available).


5. Test in Recovery Mode

Turn off your phone.

Press and hold Volume Up + Power until the Samsung logo appears.

Use volume buttons to navigate and check if the issue appears in this mode.

If the black bars appear even here, it’s likely a hardware issue.


6. Factory Reset (Last Resort)

If the issue persists, try a factory reset:

Back up your data first.

Settings → General Management → Reset → Factory Data Reset.


7. Contact Samsung Support

If black bars still appear, your S25 Ultra might have a display defect. Since it's a flagship device, you should check for warranty service at a Samsung Service Center.

Let me know what you find after these tests!

[ajuneeisnig]

If this helps please mark me as an accepted solution

[Zayyar2312]

Thank you really appreciate your help🙏👏

[Samsung_specialist]

We apology for this issue that you are facing , could you try these steps:

1. Check App Settings
2. Update Your Apps and Software
3. Clear Cache and Data for Facebook App
4. Adjust Display Settings
5. Restart Your Device

If the problem persists after following these steps, please raise an error report using the following link for further assistance: https://www.samsung.com/ae/support/mobile-devices/raising-an-error-report-via-samsung-members-app/