In recent months, many Samsung smartphone users have reported encountering sudden display lines or screen glitches after installing a software update. These issues range from faint vertical/horizontal lines to complete screen discoloration or flickering. If you're worried about your Samsung phone facing similar problems, this blog will explain the possible reasons behind this issue and how you can prevent it.
Why Do Display Lines Appear After a Software Update?
1. Software-Driver Compatibility Issues
Software updates often include new display drivers to improve performance or add features. If these drivers are not properly optimized for your phone’s hardware, they can cause display malfunctions, including lines or flickering.
2. Overheating During Update Installation
If your phone overheats during an update (due to background apps or poor ventilation), it may stress the display hardware, leading to temporary or permanent screen issues.
3. Firmware Bugs & Glitches
Sometimes, Samsung releases updates with undetected bugs that interfere with the display controller, causing abnormal screen behavior.
4. Pre-Existing Hardware Weakness
If your phone’s display was already slightly damaged (due to drops, pressure, or manufacturing defects), a software update might trigger underlying issues by changing voltage or refresh rate settings.
5. Incomplete or Corrupted Update Installation
An interrupted update (due to low battery or unstable internet) can corrupt system files, leading to display problems.
How to Prevent Display Lines After a Software Update
✅ 1. Delay Major Updates
Wait a few days after a new update rolls out. Check Samsung Community forums or Reddit threads to see if other users report display issues before updating.
✅ 2. Keep Your Phone Cool During Updates
Avoid using the phone while updating.
Close all background apps.
Update in a cool environment (not under direct sunlight).
✅ 3. Ensure Stable Power & Internet
Charge your phone above 50% before updating.
Use a stable Wi-Fi connection to prevent update corruption.
✅ 4. Backup Data Before Updating
If an update causes display problems, you may need a factory reset. Always back up important data to Samsung Cloud or a PC.
✅ 5. Check for Hardware Damage First
If your phone has existing screen issues (minor cracks, flickering), get it checked before updating.
✅ 6. Roll Back to a Previous Software Version
If your phone develops display lines after an update:
Go to Settings > Software Update.
Check if a new patch is available (Samsung often releases fixes).
If not, visit a Samsung Service Center to downgrade the software.
What to Do If Your Samsung Phone Already Has Display Lines?
Restart your phone (soft reset).
Boot in Safe Mode to check if a third-party app is causing the issue.
Perform a factory reset (last resort).
Visit a Samsung Service Center if the problem persists—it might be a hardware defect covered under warranty.
Final Thoughts
While software updates are essential for security and performance, they can sometimes cause unexpected display problems. By updating cautiously, ensuring proper installation conditions, and monitoring hardware health, you can reduce the risk of display lines appearing on your Samsung phone