How to unroot Samsung Galaxy S7 Edge?

[vero1]

i have some apps on samsunge don't work like samsung pass because of root

[Slayer1]

Flash stock firmware with odin.

[vero1]

same problem with samsung pass and health

[Phoenix7]

check whether knox is tripped or not... if knox is tripped, no matter you flash with stock rom you cant access those feature.... you need to change motherboard....
if knox is fine, you can flash stock firmware to unroot...