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  1. N

    Reinstall stock firmware on bafang M420 possible?

    Hey folks, I have some software issues with my bafang M420. I do have the cables to connect to the canbus and adjust things like speed and such with some software i found around here. Since a while the bike is giving me errors and the shop wants to replace the engine for a new one... I am...
  2. N

    Bafang M420 error code 35 & turning off randomly

    Hey folks, I have a cortina e-common ebike with a bafang m420 mid engine. On this forum i found a way to unlock the speed limit from 25km/h to 45 km/h. I did this and it worked great for over a year. After a year i had some condensation in my display. They replaced the display under warranty...
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