To Reset your Lief for a new user, go to Menu > Training > Erase Device.
Don't close the app until the device is fully erased and you feel it buzz.
The new user should download the Lief mobile app and create a new user account, then link their erased Lief to the app by following the onboarding instructions.
How do I reset my Lief?
Reseting Lief for a new user
Updated yesterday