Interesting, according to Tekin, the 223 firmware is referred to as "spec mode", now I guess it will need to be clarified who defines what is a "spec" speed controller.
Big Event "LockOut" Spec Mode, locks the ESC into Spec Mode and cannot be changed without plugging back into a
HotWire. Factory Reset does NOT turn LockOut mode off. LockOut Spec mode indicated by led's 3, 4 and 5 flashing.