VE-500: "KNOB IS LOCKED" Appears When Operating Knobs [1]–[3] May 04, 2026 09:23 Updated Follow The message "KNOB IS LOCKED" appears when the VE-500's KNOB LOCK function is active. This function prevents knobs [1]–[3] from being operated unintentionally during performance.To turn off KNOB LOCK on the VE-500:Press the [MENU] button.Select "PLAY" (PLAY OPTION).Set "KNOB LOCK" to "OFF". Related articles VE-500: How do I restore the factory settings? (Factory Reset) RC-500: How do I perform a factory reset? BA-55: Can a 3rd Party Wireless Microphone Be Used? Roland Cloud: What is Roland Cloud Manager? PX-1: What can I do with BOSS EFFECT LOADER app?