Help getting level lock integrated - failed to set up error

I’m giving this one more shot before I literally throw this thing in the trash.

I have Bluetooth installed and configured. It’s an integrated adapter in my nuc PC. I’m able to see the lock in HA as a homekit device.

When I click configure I’m prompted to the pairing code, I enter it, get a success message. Then the integration changes to ‘failed to setup’

I’m not sure where to go from here

I dont remember what i did the first time but I just updated the firmware on mine and added it to homekit again.

I reset lock by holding reset button for 10 sec till chime. Paired with app, updated firmware. added to homekit with the code.
If you havent paired it with the app first try that?
or you could try pairing then unpairing before trying to add it to homekit.