We are sorry to hear about your experience with your Samsung Galaxy Note 9 having issues with slightly yellowish tint on screen. I feel and understand why you are worried for a device that you've take care so much. If my device is facing similar experience, I will get worried too.
Before you try out the below recommendations as to your solution, be sure to check if your device's software are updated with the latest version. Please check how to update your mobile device's software in the following order.
Step 1. Go to Settings > Software update.
Step 2. Tap on Download and install.
Step 3. Follow the on-screen instructions.
If that doesn't solve the issue(s),you may submit an error report through the Samsung Members app as follows:
Step 1.Launch the Samsung Members app, and then tap the Support icon for more options.
Step 2. Scroll and select Error reports.
Step 3. Choose a category of your concern. Select"Display".
Step 4.Choose the frequency of the issue you are experiencing. Enter issue details or attach a video or screenshot. Then press Send icons to complete the report.
If the issue persists, you may bring your device to the nearest Authorized Samsung Service Center in your area. Rest assured that your device will undergo an assessment to pinpoint the root cause of the issue. Our team of Samsung engineers and technicians will guide you and offer solutions to restore it.
