Bafang bbshd error 30 and now can not jump the switch

Joined
Aug 20, 2017
Messages
14
Hi,

I have a bafang middrive kit bbshd and a 52v battery. Worked well for like 4 or so years. Recently my 790 display started blinking. I bypassed it by jumping the controller and ordered a Zeekpower Display BN136. The BN136 worked for the ride out and then gave error code 30. I tried to bypass the display again but no luck this time. Is it possible that error code 30 is stoping me from jumping the controller or is there another problem afoot?
 

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