diff --git a/radio/1.1/IRadioResponse.hal b/radio/1.1/IRadioResponse.hal
index 759602b..7dc1bc6 100644
--- a/radio/1.1/IRadioResponse.hal
+++ b/radio/1.1/IRadioResponse.hal
@@ -51,6 +51,7 @@
      * @param info Response info struct containing response type, serial no. and error
      *
      * Valid errors returned:
+     *   RadioError:REQUEST_NOT_SUPPORTED may be returned when HAL 1.2 or higher is supported.
      *   RadioError:NONE
      *   RadioError:RADIO_NOT_AVAILABLE
      *   RadioError:OPERATION_NOT_ALLOWED
@@ -59,7 +60,6 @@
      *   RadioError:NO_MEMORY
      *   RadioError:MODEM_ERR
      *   RadioError:INVALID_ARGUMENTS
-     *   RadioError:REQUEST_NOT_SUPPORTED
      */
     oneway startNetworkScanResponse(RadioResponseInfo info);