Set P-12 to 1 it will take off smoother.

You can try 3745

@@theebikeguy3852 Thanks typed in the number you suggest but it doesn't do anything, there's no enter button to enter the code 🤷‍♂️

@@raydoyle585 If I recall you have to hold the power button down for a few seconds after installing the numbers and it should go into the advanced settings

Communication error between LCD and Controller, you can check P20 to 0 and if it will work, First try to unplug lcd from.controller make.sure there are no bent pins then reconnect

@@theebikeguy3852 i did ...but i noticed something ...theres a rear led that comes from controller ....at start up they glow but i accidentally shorted them and now they stoped glowing ... is it the whole controller board or what?

@amirhoseinkargar3733 what kind of bike you got that has lights on the controller

@@theebikeguy3852 led on the back of the bike are connected to controller board

@@amirhoseinkargar3733 OK, well, I think you're referring to the rear tail light. It is possible for certain things to be working and others not to be and the controller to be partly burnt up. It's hard to say in your case without actually running test on it and without it being in front of me. Well well obviously I can't run test. Or it could have been that you burnt out the lights. It's hard to say. If you have a electric bicycle shop nearby, I suggest that you take it there. Sorry, you're having a difficult time with it.