diff --git a/radio/1.0/IRadio.hal b/radio/1.0/IRadio.hal
index 236dbf5..66cd4f0 100644
--- a/radio/1.0/IRadio.hal
+++ b/radio/1.0/IRadio.hal
@@ -385,7 +385,10 @@
      *                  Note this is for backward compatibility with the old radio modem. The modem
      *                  must not use this param for any other reason.
      *
-     * Response function is IRadioResponse.setupDataCallResponse()
+     * Response function is IRadioResponse.setupDataCallResponse() which may return
+     * RadioError:REQUEST_NOT_SUPPORTED if @1.2::IRadio or higher is supported.
+     *
+     * DEPRECATED in @1.2 or higher, use @1.2::IRadio.setupDataCall_1_2() instead.
      */
     oneway setupDataCall(int32_t serial, RadioTechnology radioTechnology,
             DataProfileInfo dataProfileInfo, bool modemCognitive, bool roamingAllowed,
@@ -546,7 +549,10 @@
      *        false => No specific reason specified
      *        true => Radio shutdown requested
      *
-     * Response function is IRadioResponse.deactivateDataCallResponse()
+     * Response function is IRadioResponse.deactivateDataCallResponse() which may return
+     * RadioError:REQUEST_NOT_SUPPORTED if @1.2::IRadio or higher is supported.
+     *
+     * DEPRECATED in @1.2 or higher, use @1.2::IRadio.deactivateDataCall_1_2() instead.
      */
     oneway deactivateDataCall(int32_t serial, int32_t cid,
             bool reasonRadioShutDown);
@@ -1456,7 +1462,10 @@
      * @param reportInterval desired reporting interval (ms).
      * @param pullMode LCE service mode. true: PULL; false: PUSH.
      *
-     * Response callback is IRadioResponse.startLceServiceResponse()
+     * Response callback is IRadioResponse.startLceServiceResponse() which may return
+     * RadioError:REQUEST_NOT_SUPPORTED if @1.2::IRadio or higher is supported.
+     *
+     * DEPRECATED in @1.2 or higher which use the always-on LCE that relies on indications.
      */
     oneway startLceService(int32_t serial, int32_t reportInterval, bool pullMode);
 
@@ -1466,7 +1475,10 @@
      *
      * @param serial Serial number of request.
      *
-     * Response callback is IRadioResponse.stopLceServiceResponse()
+     * Response callback is IRadioResponse.stopLceServiceResponse() which may return
+     * RadioError:REQUEST_NOT_SUPPORTED if @1.2::IRadio or higher is supported.
+     *
+     * DEPRECATED in @1.2 or higher which use the always-on LCE that relies on indications.
      */
     oneway stopLceService(int32_t serial);
 
@@ -1475,7 +1487,10 @@
      *
      * @param serial Serial number of request.
      *
-     * Response callback is IRadioResponse.pullLceDataResponse()
+     * Response callback is IRadioResponse.pullLceDataResponse() which may return
+     * RadioError:REQUEST_NOT_SUPPORTED if @1.2::IRadio or higher is supported.
+     *
+     * DEPRECATED in @1.2 or higher which use the always-on LCE that relies on indications.
      */
     oneway pullLceData(int32_t serial);
 
@@ -1546,7 +1561,10 @@
      * @param indicationFilter 32-bit bitmap of IndicationFilter. Bits set to 1 indicate the
      *        indications are enabled. See IndicationFilter for the definition of each bit.
      *
-     * Response callback is IRadioResponse.setIndicationFilterResponse()
+     * Response callback is IRadioResponse.setIndicationFilterResponse() which may return
+     * RadioError:REQUEST_NOT_SUPPORTED if @1.2::IRadio or higher is supported.
+     *
+     * DEPRECATED in @1.2 or higher, use @1.2::IRadio.setIndicationFilter_1_2() instead.
      */
     oneway setIndicationFilter(int32_t serial, bitfield<IndicationFilter> indicationFilter);
 
@@ -1560,7 +1578,10 @@
      * @param serial Serial number of request
      * @param powerUp True if powering up the sim card
      *
-     * Response callback is IRadioResponse.setSimCardPowerResponse()
+     * Response callback is IRadioResponse.setSimCardPowerResponse() which may return
+     * RadioError:REQUEST_NOT_SUPPORTED if @1.1::IRadio or higher is supported.
+     *
+     * DEPRECATED in @1.1 or higher, use @1.1::IRadio.setSimCardPower_1_1() instead.
      */
     oneway setSimCardPower(int32_t serial, bool powerUp);
 
diff --git a/radio/1.0/IRadioIndication.hal b/radio/1.0/IRadioIndication.hal
index eb07226..eb6c8ef 100644
--- a/radio/1.0/IRadioIndication.hal
+++ b/radio/1.0/IRadioIndication.hal
@@ -427,6 +427,9 @@
     *
     * @param type Type of radio indication
     * @param lce LceData information
+    *
+    * DEPRECATED in @1.2 and above, use
+    * @1.2::IRadioIndication.currentLinkCapacityEstimate() instead.
     */
    oneway lceData(RadioIndicationType type, LceDataInfo lce);
 
diff --git a/radio/1.0/IRadioResponse.hal b/radio/1.0/IRadioResponse.hal
index c1b16b7..00cec9f 100644
--- a/radio/1.0/IRadioResponse.hal
+++ b/radio/1.0/IRadioResponse.hal
@@ -590,10 +590,10 @@
      *   RadioError:NONE must be returned on both success and failure of setup with the
      *              DataCallResponse.status containing the actual status
      *              For all other errors the DataCallResponse is ignored.
+     *   RadioError:REQUEST_NOT_SUPPORTED may be returned when HAL 1.2 or higher is supported.
      *   RadioError:RADIO_NOT_AVAILABLE
      *   RadioError:OP_NOT_ALLOWED_BEFORE_REG_TO_NW
      *   RadioError:OP_NOT_ALLOWED_DURING_VOICE_CALL
-     *   RadioError:REQUEST_NOT_SUPPORTED
      *   RadioError:INVALID_ARGUMENTS
      *   RadioError:INTERNAL_ERR
      *   RadioError:NO_MEMORY
@@ -856,12 +856,12 @@
      * @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:INVALID_CALL_ID
      *   RadioError:INVALID_STATE
      *   RadioError:INVALID_ARGUMENTS
-     *   RadioError:REQUEST_NOT_SUPPORTED
      *   RadioError:INTERNAL_ERR
      *   RadioError:NO_MEMORY
      *   RadioError:NO_RESOURCES
@@ -2420,11 +2420,11 @@
      * @param statusInfo LceStatusInfo indicating LCE status
      *
      * 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:LCE_NOT_SUPPORTED
      *   RadioError:INTERNAL_ERR
-     *   RadioError:REQUEST_NOT_SUPPORTED
      *   RadioError:NO_MEMORY
      *   RadioError:NO_RESOURCES
      *   RadioError:CANCELLED
@@ -2436,6 +2436,7 @@
      * @param statusInfo LceStatusInfo indicating LCE status
      *
      * 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:LCE_NOT_SUPPORTED
@@ -2443,7 +2444,6 @@
      *   RadioError:NO_MEMORY
      *   RadioError:NO_RESOURCES
      *   RadioError:CANCELLED
-     *   RadioError:REQUEST_NOT_SUPPORTED
      *   RadioError:SIM_ABSENT
      */
     oneway stopLceServiceResponse(RadioResponseInfo info, LceStatusInfo statusInfo);
@@ -2453,6 +2453,7 @@
      * @param lceInfo LceDataInfo indicating LCE data as defined in types.hal
      *
      * 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:LCE_NOT_SUPPORTED
@@ -2460,7 +2461,6 @@
      *   RadioError:NO_MEMORY
      *   RadioError:NO_RESOURCES
      *   RadioError:CANCELLED
-     *   RadioError:REQUEST_NOT_SUPPORTED
      *   RadioError:SIM_ABSENT
      */
     oneway pullLceDataResponse(RadioResponseInfo info, LceDataInfo lceInfo);
@@ -2534,13 +2534,13 @@
      * @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:INVALID_ARGUMENTS
      *   RadioError:RADIO_NOT_AVAILABLE
      *   RadioError:NO_MEMORY
      *   RadioError:INTERNAL_ERR
      *   RadioError:SYSTEM_ERR
-     *   RadioError:REQUEST_NOT_SUPPORTED
      *   RadioError:NO_RESOURCES
      *   RadioError:CANCELLED
      */
@@ -2550,9 +2550,9 @@
      * @param info Response info struct containing response type, serial no. and error
      *
      * Valid errors returned:
+     *   RadioError:REQUEST_NOT_SUPPORTED may be returned when HAL 1.1 or higher is supported.
      *   RadioError:NONE
      *   RadioError:RADIO_NOT_AVAILABLE
-     *   RadioError:REQUEST_NOT_SUPPORTED
      *   RadioError:INVALID_ARGUMENTS
      *   RadioError:INTERNAL_ERR
      *   RadioError:NO_MEMORY