I didn’t bother to format the card. But I think it messed with the graphics some how. I used it for a much older phone and thought it would be nice to see what was on it. Nothing too — it was only music I had from a long time ago. Looking on a computer it said desktop.ino and WPsettings. But neither of the files had anything interesting either.
The phone worked perfectly fine before that. Unfortunately malwarebytes, even with deep scan, and rebooting the phone in safe mood didn’t work.
Since nothing else happened like freezing or things moving, just the green flickering screen between 20-60% brightness, am I just being paranoid? or have I been pwned? I think my S3 which I used it on last might have had a virus. But I thought the S9’s security would be able to handle it!