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RadPower & Bafang “Error 30” Fix: The “Green Connector” Trick (Save Your Controller)

November 11, 2025

Close-up of disconnecting the green waterproof display connector to fix RadPower Error 30 and Bafang communication faults on an e-bike

Stop. Don’t buy a new $150 controller yet. If you turned on your RadPower, Aventon, or Bafang-equipped e-bike today and ...

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Fix your "Error 30" e-bike in 5 minutes with the secret "Green Connector" trick. Save $150 on repairs with this simple, tool-free DIY guide

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