Looking though that it looks like Samsung made a comment

Samsung’s representative stated:

“I’m unfamiliar with the specific variables that could have come into play with this repair or the unsubstantiated comments from Mr. Jeffrey. What I can tell you is that there is no requirement to pair parts on our smartphones. If a repair were conducted correctly, a device would not lose functionality.”

I was checking to see if anyone made any additional comments on the Hugh Jeffreys video and someone said they replaced the screen but kept the fingerprint sensor and it still worked fine. I believe replacing the battery with a 3rd party option should still have the device working fine.

Hugh left a comment on the video as well: