The problem started a few weeks ago. If power mode is anything but 'high performance' and I turn on the display by clicking the power button, the display turns yelllow and images look very low resolution.
If I turn off the display by pressing the power button, wait for a minute or two and then turn on the display again by using the finger print sensor (and not the power button), the display is restored to its former glory.
Things I have checked/tried:
-The issue is not related to blue filter. The filter is not turned on
-Clearing the cache and restarting the phone did not help
-Changing the colors under adaptive display did not help
Surprisingly my wife's S9, also has the same issue. The s9 and s9+ were bought witin a few months of each other
Does this happen when your device is in safe mode?
Let's try putting the device in Safe mode to determine if there are external factors that cause this symptom. This step will temporarily disable all your third-party apps, but none of your personal data will be deleted. Your customization settings (Wallpaper, Themes, et cetera) will be reset to default once you exit this mode.
Please follow the steps below:
1. Turn the device off.
2. Press and hold the Power key past the model name screen.
3. When "SAMSUNG" appears on the screen, release the Power key.
4. Immediately after releasing the Power key, press and hold the Volume down key.
5. Continue to hold the Volume down key until the device finishes restarting.
6. Safe mode will display in the bottom left corner of the screen.
7. Release the Volume down key when you see Safe Mode.
8. To exit Safe Mode, restart your device.
Let us know how your device responds after performing this step!
Thank you for your response. I tried the safe mode and the issue occurs in safe mode too.
Also, I noticed that the issue occurs even when power setting is 'high performance' (I had stated differently in my first post)
Are you using a theme on your device? Are you using a third party launcher on your device?
I have not downloaded any themes or third party launcher. I use whatever came out of the box. The only setting I had changed was the wall paper and that too I reset to the default, once the issue cropped up.
Have you tried wiping the cache partition on the device yet? You can do so by following these steps:
Also, do you have the google books app downloaded on your phone?
I don't have google books on my phone.
Clearing the cache also did not help.
In fact, because I pressed the power button to clear cache, the sceen turned yellowish even during bootup. Is this a hardware problem?
Your phone appears to be having the same problem as others, you may or may not be having screen burning, since you have such an old phone (for it's time [quite new]) your RGB or red green blue orb pixel or square centimeter has burned out.
Can I please have your full model number, baseband version, and service provider?