Bafang Error 30h

[tommyh7]

Hi all i have a 750c display but has come up with error 30h i have tried this on my friends bike that i know is working but same error

 

[AHicks]

Any other "symptoms" that might supply a hint? E.g - what's NOT working?

 

[Gionnirocket]

Communication error.. so if it's happening on 2 bikes it's more than likely the connection to the display or the display itself.
Check the pins at the connections and gently clean with some alcohol if necessary. ... If all OK there, probably a faulty display.
You can try doing a factory reset from the display menu as well.
Instructions

 

[tommyh7]

please see video