Agreed recently flew into Beijing, took photos of my lft test just in case.

If flying with British airways avoid using their document upload system it says it requires a health declaration form (which expires as the code is valid for 24 hrs) and photos of the lft test.

We uploaded out photos which then got rejected because we didn't have a timestamp on the photo (not sure how they wanted this). Then went straight to airport to check in and wasn't asked to provide any proof so completely unnecessary