Have you ever turned on your beloved Samsung phone screen one morning, and... tadaaa! a bright green line appeared from top to bottom. If you immediately panicked and thought: “Is this a lightsaber?” — you are not alone.
This phenomenon often occurs on Samsung AMOLED screens, especially flagship models such as the Galaxy S20, S21, S22, and S23 and S24. But the question is: Can this mysterious green line disappear on its own? Or do we have to dig deep into our wallets?
Come on, let's dig deep. This ajakteman.com article will discuss from A to Z about the "lightsaber" on the Samsung screen - from the causes, solutions, to how to prevent it. Make sure you read until the end!
What Is the Green Line on an AMOLED Screen?
Green, purple, or white vertical lines that suddenly appear on AMOLED screens are often referred to by users as “lightsabers.” At first glance, it looks like a lightsaber in the Star Wars movies — it lights up on its own for no apparent reason.
Why Does It Appear?
These lines usually appear because:
- Hardware damage to AMOLED panel
- Unstable electrical voltage to certain pixel parts
- Pressure or impact marks (although sometimes not felt)
- Factory defects that only appear after some time
- Certain software updates trigger pixel imbalance
Interestingly, many users claim that this line appears after they update the system or when the battery is hot. However, the main cause is almost always related to hardware .
Can Samsung Lightsaber Disappear By Itself?
Short Answer: Yes, But...
There are some cases where users reported their green line disappearing on its own . But this is very situational and can be said to be more of a luck factor. Here are the possible scenarios:
1. Lines Appear Due to Software Bug (Very Rare)
- Can be lost after restart
- Can be lost after the latest firmware update
- Can be lost after factory reset
2. Lines Appear Due to Unstable Electric Voltage
- Temporarily disappears when the screen cools down
- Disappears when brightness is changed
3. Lines Due to Permanent Damage
- It won't go away on its own
- Over time, the lines can increase in number.
- There is only one solution: replace the screen.
Features of a Lightsaber That Won't Disappear on Its Own:
- Remains even after restart or shutdown
- No color change
- It feels like the screenshot remains clean (a sign of hardware)
- Appears in normal temperature conditions
What to Do If Lines Appear?
Don't panic. Take these steps first before giving up:
1. Try Restarting
- Sometimes the system can "refresh" and the lines disappear temporarily.
2. Lower Brightness to Minimum
- Some cases of dim green line when brightness is low
3. Change Screen Color Mode
- Switching from "Vivid" to "Natural" can help balance the pixels.
4. Run Hardware Test
- Type
*#0*#in the Phone application (dialer) - Select the menu "Red", "Green", "Blue" for pixel test
5. Update Software
- Make sure to use the latest firmware version from Samsung
Final Solution: Replace the Screen
If all of the above methods fail, the screen is most likely physically damaged. Replacing an AMOLED screen on a Samsung is not cheap — it can cost up to 2-5 million depending on the model.
But don't go straight to a fake counter! If your phone is still under warranty and has never been dropped or exposed to water , there is a chance the screen can be replaced for free at an official service center.
Tips:
- Bring video evidence when the line appears.
- Don't forget to backup your data first
Can It Be Prevented?
Although it cannot be 100% prevented, you can reduce the risk by:
- Don't let your phone overheat (avoid playing games while charging)
- Use the original charger
- Use tempered glass and casing for impact protection.
- Don't sit on your phone (it often happens without you realizing it!)
- Avoid excessive pressure on the screen
So...
The “lightsaber” on Samsung’s screen is not a hidden feature or a futuristic style, but rather an SOS signal from your AMOLED screen. Although it can sometimes disappear on its own, you should still be alert and be prepared with the option of replacing the screen.
And don't forget, ajakteman.com has also discussed this topic from the AMOLED technology side. So for those of you who want to know more about why AMOLED can be damaged like this, you can also peek at that site.
Hopefully your phone is always healthy without mysterious green or purple lines. But if they do appear, at least now you know what to do!
If you like articles like this, don't forget to share it with your friends who might also be wondering, "Why did my phone suddenly become Star Wars?"
Stay aman, stay techy!