It definitely CAN be done!
I have the MU 6120 Samsung Smart TV and my Smart remote controls my V6 just fine - just follow the initial set up process and the remote will automatically pair to the V6.
Failing that, I would read through this thread (page 2 onwards) over on AV Forums : https://www.avforums.com/threads/samsung-50mu6120-owners-thread.2130467/page-2 , as it seems there are several variants of the Smart remote.
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