Thank you for reaching out your concern here. And really we know, how are you feeling right now, don't know if you gonna proceed with the repair service or not.
But don't worry; we are here to assist, and provide solutions to the issues with your device.
A) 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.
Also, check Samsung members apps, notification bell icon for any updates information available for your device.
B) 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;
Step 4. Your Samsung 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.
C) 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.
D) For more assistance, you may contact us on our online Samsung support channels below.
Hope this content is helpful and your problem gets solved.
Make sure to click the ACCEPT AS SOLUTION button in your subsequent response, if we have satisfied your inquiry.