Samsung screen

[UsamaUmar]

I have a question regarding samsung phone.....will Spen work on my samsung s21 ultra if i replace my screen ?? And what if i don't get orignal screen and replace ut with A+ quality oled S21 ultra screen from china....in short i just want to know if my Spen works after screen replacement. 

Kindly let me figure out

I'm grateful 

[MZYR]

No.
S pen was introduced with s22 ultra not with s21. So there is no software coding built-in to work with.

[Aadí]

S21 ultra S Pen may work if the panel is A++ quality. It will not work with china, copy panels