Ensure all versions of the games are up to date with the latest patch (old-gen and new-gen) and you are connected to PlayStation Network or Xbox Live.Once you have that patch downloaded, follow these steps:
To use a save from the previous generation versions of Borderlands 2 and Borderlands: The Pre-Sequel in Borderlands: The Handsome Collection, first you’ll need to download the patches enabling cross-save for Borderlands 2 and Borderlands: The Pre-Sequel, which should be available for download around the time of the Handsome Collection release. If you've already played Borderlands 2 and/or Borderlands: The Pre-Sequel on Xbox 360 or PlayStation 3 (or PS Vita for Borderlands 2), you’ll be able to transfer your save within the same console family.