Controller is locked down with a 7-segment LED code of either OE L0 or 06 L0 on the back of controller. The codes indicate the controller is locked down due to hardware mismatch. Condition: This contr...Controller is locked down with a 7-segment LED code of either OE L0 or 06 L0 on the back of controller. The codes indicate the controller is locked down due to hardware mismatch. Condition: This controller is paired with an invalid device in its alternate controller slot. Replace the in correct controller canister device with a matching The following error messages may be displayed in the boot sequence (console output) and the debug queue logs: