Right well, it was my oneplus

. Very impressed so far, it's big but the curved textured back helps a lot. Still find myself resorting to two hands though but no big issue.
First thing I did was to max the screen brightness and check for the yellow issue. I composed a text which has complete white background and I'm struggling to see any yellow tint or banding at the bottom or any part of the screen. Maybe this had been fixed on new batches.
So far a happy chap. ^^/