Smartphone in Phablet format with Stylus SPen launched by Samsung, The Galaxy Note 9 is larger and more powerful than its predecessors. High-end device with a remarkable design and perfectly neat finish, the Note 9 is also a powerhouse! It is powered by the eight-core Exynos 9810 Octa chipset associated with the Mali-G72 GPU, both associated with a 6 GB RAM memory. Regarding the internal storage capacity, it is 128 GB expandable up to 512 GB via MicroSD memory card. The phone sports a stunning immersive Super Amoled Infinity display with a resolution of 2960 x 1440 Pixels for an incredible density of 516 pixels per inch. The almost “infinite” contrast specific to Oled technology screens gives it an impressive color rendering and a quality of perfect display in all circumstances indoors and outdoors in bright conditions. This Phablet Best Seller from the South Korean manufacturer is powered by a substantial 4000 mAh battery, enough to provide it with comfortable autonomy. The Li-ion battery is compatible with fast and wireless charging.

Despite the fact that the Galaxy Note 9 is an undeniable success and a top-flight mobile terminal. It happens that it encounters certain problems and malfunctions. In this tips and tricks section, Smartphone Labo addresses the flickering problem of the device screen . Display flicker may be a sign of a hardware malfunction or only a minor concern. There may be cases in which there are applications that cause screen flickering and firmware issues also cause the same symptoms.

We will guide you to try to help you troubleshoot your Note 9 and find a perfect display quality on your screen. Follow the suggested procedures and workarounds below one by one and see if that fixes the problem. But before you begin, it’s important to know that if your device has suffered physical harm from a drop or shock, the workarounds won’t help you. In the event that the panel is damaged or defective, it is imperative to change the complete display unit either by going through a Samsung center or by replacing it yourself, provided that you are more or less a handyman and have available , spare parts to repair it and a minimum of tools.

If you are convinced of the physical integrity of the screen and the device, get to work and follow the step-by-step procedures, taking all the time necessary.

Perform a forced restart
This simple-to-perform procedure will eliminate the likelihood that the problem is due to the firmware. Force restarting will simulate battery removal. If after restarting the screen is working properly, the culprit will be unmasked!

Press and hold the volume down key and the Power button for 20 seconds until the Galaxy Note 9 logo is displayed on the screen. After the phone has restarted, see if the flickering persists, if so move on to the next solution.

Start the device in safe mode
By starting Note 9 in safe mode, third-party apps will be temporarily disabled and it will help to know if the flickering display issue is not caused by one of them. If in Safe Mode the Smartphone behaves normally and does not flicker, it will mean that a third party application is causing the malfunction. To start in safe mode, follow the directions below.

Press and hold the Power button until the options are displayed.

Long press the turn off option until it enters safe mode.

Tap the Safe Mode icon. The device will restart and display “Safe Mode” on the lower left of the screen.
Assuming the screen no longer flickers in this mode, the solution will be clear and precise. It will be necessary to find the application in question and uninstall it completely from the device. Always start with the applications installed last and proceed by elimination.

Reset all Note 9 settings
Everyone knows that a lot of performance problems can appear after changing the settings of a. If you have touched and changed the settings of your Samsung device, you must launch to restore the original settings. The data stored on your Note 9 does not risk anything.

Go to Settings> General management> Reset.
Tap on Reset settings and check if the problem persists.

READ: Galaxy Note 9 vs Note 8, what are the differences?
Clear cache partition
When the system cache gets corrupted, performance issues can arise including the screen flickering issue. Therefore, it is recommended to delete the data stored in cache so that the partition is refreshed. This procedure does not result in any loss of data. To delete the system cache, follow the detailed steps below.

Switch off the phone.

Press and hold the volume plus and Bixby keys , then press and hold the Power button.

When the Galaxy Note 9 logo appears, release all three keys.

The Smartphone will continue to start in recovery mode. When a black screen with blue and yellow text will be visible, use the volume down key to highlight ” wipe cache partition “.

Use the Power Button to select.

Highlight “Yes” using the volume down key, then press the Power button to select.

When the cache cleanup procedure is complete, System Restart is now highlighted. Restart using the Power button to confirm.
Factory reset
After deleting the system cache and the screen flickering problem persists, it will be necessary to go to the extreme solution, that is to say: restoring the factory defaults. This procedure is usually effective in solving all kinds of firmware issues. If this problem occurs for no apparent reason, a basic reset might be the solution and get your Note 9 back into shape. However, it is important to make sure you have created a backup of your files and data. I must also delete your Google account so as not to be blocked later.

Switch off the device.

Press and hold the volume plus and Bixby keys, then press and hold the Power button.

When the Note 9 logo appears, release everything. The device will start in recovery mode.

Use the volume down key to highlight “wipe data / factory reset”. Press the Power button to select.

Highlight “Yes” with the volume minus key.

Press the Power button to select and start the master reset.

When the procedure is complete, “Reboot system now” is highlighted.

Use the Power button to restart the Phablet.
If the screen flickering continues after the reset, you will need to contact a service center to have your Samsung device diagnosed by professionals.

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