I had a SB2900 connect to a Manta M8P V2 and it was working fine until I by accident short circuit it. I replaced it with a EBB36 after installing klipper on EBB36 and retrieved the uuid I connected it to the Manta and startede it up. I no longer have an uuid for the CB1.
I flash Klipper to the CB1 again and I got the uuid shut it down and connected the EBB, startred it up and the CB1 uuid is gone. The EBB36 uuid is still there.
Even without the EBB connected the uuid is gone after reboot.
I have Manta TX connected to H on EBB36 and Manta RX connected to L on the EBB36. I have 120R connected on both.