I have a bosch gen 1 classic mid motor with the currie electric display and pedal assist is failing giving me an E1 code error. I looked it up and recommends computer controller be checked by dealer. My bike system doesn't have a connector for USB or Bluetooth . It's a bit of a pain in the arse to haul it into the bike shop so I'm wondering if if it wouldn't be easier to just replace the computer control board instead. Any thoughts or suggestions would be greatly appreciated.