This version of the game unlocks almost every cosmetic item, including the skins originally tied to pre-order bonuses.
All Star Cards (like Yoda's Mastery) can now be earned through standard gameplay and leveling up your characters.
Beta servers were shut down years ago; these codes will not grant access to a "special" version of the game.
If you are looking for the "Beta feel" or the rewards that came with that Best Buy pre-order, here is how the game stands now:
Entry into the beta 48 hours before the general public.
The Star Wars Battlefront 2 beta concluded in October 2017, and Best Buy pre-order codes are no longer valid or available for redemption. Since the game has been fully released for several years, all beta-exclusive content has either been integrated into the base game or retired. 🚀 The Legacy of the Best Buy Beta Promotion
An exclusive Epic Star Card for Yoda.