I am also facing same issue after installing March Security 2020 update. And yes I am under Extended warranty of Samsung Care Pack. But I will fight for what is wrong.
As we keep on getting robotic / copy paste solution from Customer care.
I contacted Samsung Care thru WhatsApp and thru their contact numbers. And I got 3 different answers.
1. WhatsApp - CC executive says "YE ISSUE TO PEHLI BAAR SUN RAHE SIR HUMLOG NOTE 9 K LIYE"
Called on Customer care numbers and 2 different solutions:
1. First Lady said may be there are problems we don't know, but after giving her the facts that this is worldwide issue, she kept on hold and said that she discussed with R&D executives and they told her that may be they are aware of this issue and whoever will register the complaint by calling Samsung CC, they will push some security patch only to those affected persons phone to resolve this issue.
2. This person told me that may be there are issues , and I asked then who all are the person mentioned below on Samsung Members App with Note 9 facing this issue. Because you are not confirming rather telling me that there can be iasue as such. After putting on hold he said that his seniors indeed confirmed that there are note 9 display issue and whether those are in warranty or out of warranty it will be fixed free of cost and condition is there should be no physical damage. (I have the call recordings of both)
Now question to everyone with Note 9 issue as hiw far you would go for this issue and how would you put fight with Samsung.
And AGAR KOI ISSUE NAHI , THEN WHO ALL ARE THE PERSON MENTIONED BELOW WITH NOTE 9 ISSUE.
KYA HUM LOG COVID19 MEIN MAJE LEIN RAHE.
Because Samsung haven't responded yet.
If this is the behavior, then I would rather sell kidney and buy iPhone, also I am done with Exynos processors in flagship phones.
We request you, kindly register your concern in Samsung Members app (Samsung Members app > Get help > Feedback > ask question) so that we can assist you accordingly.
I have the same problem with my note 9 it's showing green tint when I keep it in medium brightness. Because of this issue I'm using it in manual brightness mode. And when I contacted Samsung via Samsung members app they told me to visit service center. So I went to the service center and checked with the service guy he was inspected my device and he said that I need to change the display and it's a physical damage, but my mobile is in a good shape it doesn't even have a scratch on it. WhenI asked the same thing he came with a silly reason like even though it doesn't have any physical damage display might damage because keeping it in my jeans pocket.
What's the status of your phone . What Service center has to say. Because based on your solution only we would come to reality check whether it is Hardware or Software issue. Please update us
