Ninebot ESX Error Code 54
"Motor phase C (blue) disconnected - check motor-related cable"
If your Ninebot ESX(ES1, ES2, ES3, or ES4) or SNSC (1.0 or 1.1) is beeping or has a red wrench icon and flashes this code, read below.
If you clicked the wrong error code, go back to the Error Code Index.
Previous Error Code: Ninebot ESX Error Code 53 - Next Error Code: Ninebot ESX Error Code 55
Cause
As the message states, error 54 should be thrown when motor phase C (the blue one) becomes disconnected or damaged.
Fix
Remove the pole from the base and check that the phase is still connected and not damaged.