Thanks Joe but I am specifically looking for info on Speedbox3. I ran the Speedbox2 on my bike and it resulted in an Error 504 message which puts the motor into limp mode. An issue with the 4th generation of Bosch motors apparently.
Has anyone tried to put a Speedbox3 onto a 4th generation (2020) Bosch motor? And if so, did it solve the Error 504 problem associated with Speedbox 2? And if you have, and it did, how long do you have to wait for the display to ahow zero before you can switch it off?