After I updated the April security patch last night in my S20 Ultra, I'm facing this issue when the mobile is running in the 120hz mode if the brightness is under 25% the display is applying a green filter, this is also occurring when I open the front camera in any app, if it is kept in 60hz it's working normally, and the device is getting hot after the update
yes, malaysia exynos version (s20ultra) is having this same problem!! not only the calculator app...it is also happening in camera app, when u watch a video on facebook website on google chrome, games(any games!)...this is fcking annoying!! please fix it!!
In this case your best option would be to contact samsung directly as their are no service center that will physically service the devices onsite these items are usually shipped out with proof purchase or further inspection down below i have attached a link
For shipping repair, you need to call Samsung, the hotline is indicated in this link: https://www.samsung.com/us/support/contact/
I don't know whether it is a software or hardware problem. I don't want to get it repaired if it is a hardware problem cause I'm gonna lose water resistance. I want to to be replaced and I'm from India, here all the service centres were closed because of the lockdown.