Thank you for letting us know about your Samsung Galaxy device having glitch & backlight flickering issues.
Recognize how frustrating it can be when you try to fix performance issues on your Samsung device but are unable to. But don't worry; we're here to help, provide quick fixes, and solve problems with your device.
Follow these easy steps to troubleshoot and figure out what's causing your device's performance issues.
A) First, ensure that your device is up-to-date with the latest Software updates.
Settings > About Phone > Software Updates > Download and Install > Follow On-screen notifications.
B) Restarting your device.
Press and hold the Power key and the Volume down key simultaneously for more than 7 seconds to restart it.
C) Running the Diagnostic Tools under Samsung Members app.
Step 1. Run Samsung Members and select Get help on the lower half of the screen.
Step 2. Tap View Tests located under Diagnostics.
Step 3. Diagnostics checks, Individually Tap the following;
"Touch screen"
Step 4. Your Galaxy phone will then run through the checks.
Step 5. Follow the on-screen instructions to complete the check.
Step 6. You can view your results after each check is complete.
D) Report error through Samsung Members app.
Step 1. Long press Samsung Members icon on Apps screen and Tap Error reports.
Step 2.Tap OK on agreement popup for sending system log data.
Step 3. Select Symptom category.Tap Display.
Step 4. Describe problem in detail and SEND.
E) Clear Cache Partition.
Step 1. Turn-off your phone. Step 2. Plug in the USB cable via PC or Type-C earphones (in case its USB-C to USB-C). Step 3. Then press and hold Power and Volume up buttons. Step 4. Release the power button. When the recovery screen shows up, release the volume up button. Step 5. Navigate to and select Wipe cache partition (Volume up and down is for highlighting options and power is to select). Step 6. Navigate to and select Yes. Step 7. Press the power button to select Reboot system now. Then, check your device by connecting to Wi-Fi.
F) Change the display mode to ‘Light’ mode.
Step 1.Tap theSettingsapp.
Step 2.Tap Display.
Step 3.SelectLight.
G) Adjust Display Brightness.
Choose a new display setting on your device if the screen is too intense for your liking. Or, you can turn up the brightness if it's too dark or difficult to see.
Step 1. Select the Settings app.
Step 2.TapDisplay.
Step 3.Adjust the Brightness.
H) For more assistance, you may contact us on our online Samsung support channels below.
