Anybody know how to fix this it's driving me mad

[Redders473]

sometimes i turn the bike on and get them 2 lines and then the bike just powers off and ideas ??

 

[TheBikeMechanic]

Power supply missing from the battery to the motor. The display has its own rechargable battery and is plugged into the lever. Best option is going to be a certified Bosch Tech who can take a look at it and put it up on the diagnostic tool.