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Active Level 6
Why is a part of screen of  Samsung Galaxy S10 turning/flickering white when  turn up brightness?

That's bad and unusual. Did you damage or crack your screen before. If so, then it's probably because of that. If not then you can open the dialer and type *#0*#. You don't have to press the dial button. It should automatically bring you to a menu like this:

image

Tap the Red, Green, and Blue tiles. They should display solid colours. If there is anything 'not solid color', then chances are your display is damaged. If they all display colours just fine, then tap the Receiver tile, this will activate your earpiece and turn the screen white with maximum brightness. If the flickering occurs, then your display is probably damaged. If it's not, then it's still probably damaged and you should go to an Authorized Service Center. You can also explore other tiles before you do so just for kicks and giggles.

NOTE : If you are in the colour test and want to go back, just tap anywhere on the screen.

Most of the menu's require a double back press in order to get out. The menu itselft also require you to press(or swipe) the back button twice if you want to return to your home screen.

*Also know that nothing will happen to your phone if you do something in that menu. It is just a troubleshooting tool and is totally harmless.*

Hope it helps.😉😉😉
13 Comments
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Expert Level 5
but currently almost all user facing it, and its not due to device fault
its Google software issue
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by the good and informative post for all who want to know this information
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thanks 🤗 dear
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Expert Level 5
good information......screen flicker maximum case happend which due to display connector plug in issue ..and unfortunately service center change the display instead of repair it 🤗
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thanks 😊 dear
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by the way you didn't hit like
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forgot 🤣🤣
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