diff --git a/components/bt/controller/esp32c3/Kconfig.in b/components/bt/controller/esp32c3/Kconfig.in
index 7ceed951f9..0363a98034 100644
--- a/components/bt/controller/esp32c3/Kconfig.in
+++ b/components/bt/controller/esp32c3/Kconfig.in
@@ -83,13 +83,16 @@ choice BT_BLE_CCA_MODE
     default BT_BLE_CCA_MODE_NONE
     help
         Define BT BLE CCA mode
+        Note that if CCA feature is enabled, the hardware may not transmit packets due to channel busy.
+        Therefore, it may potentially lead to an increase in the time taken for scanning advertising packet
+        and establishing connections, or a decrease in the throughput rate of the connection.
 
     config BT_BLE_CCA_MODE_NONE
         bool "NONE"
     config BT_BLE_CCA_MODE_HW
         bool "Hardware"
     config BT_BLE_CCA_MODE_SW
-        bool "Software"
+        bool "Software (experimental)"
 endchoice
 
 config BT_BLE_CCA_MODE
diff --git a/components/bt/controller/lib_esp32c3_family b/components/bt/controller/lib_esp32c3_family
index 2ce747aec8..0cfafa1e0a 160000
--- a/components/bt/controller/lib_esp32c3_family
+++ b/components/bt/controller/lib_esp32c3_family
@@ -1 +1 @@
-Subproject commit 2ce747aec8008d008fe34fa375a2aea3e7e48e9a
+Subproject commit 0cfafa1e0aa30b7d59f53c38588f0598e228d127
diff --git a/components/bt/include/esp32c3/include/esp_bt.h b/components/bt/include/esp32c3/include/esp_bt.h
index d6aa093a2b..cc21bcab8b 100644
--- a/components/bt/include/esp32c3/include/esp_bt.h
+++ b/components/bt/include/esp32c3/include/esp_bt.h
@@ -491,7 +491,7 @@ typedef struct {
     uint8_t ble_cca_mode;                   /*!< BLE CCA mode. Configurable in menuconfig
                                                 - 0 - Disable (default)
                                                 - 1 - Hardware-triggered CCA
-                                                - 2 - Software-based CCA */
+                                                - 2 - Software-based CCA (experimental) */
     uint8_t ble_data_lenth_zero_aux;        /*!< Enable / disable auxiliary packets when the extended ADV data length is zero. Configurable in menuconfig.
                                                 - 0 - Disable (default)
                                                 - 1 - Enable */
diff --git a/components/esp_rom/esp32c3/ld/esp32c3.rom.bt_funcs.ld b/components/esp_rom/esp32c3/ld/esp32c3.rom.bt_funcs.ld
index 3604d3235f..580217eb5b 100644
--- a/components/esp_rom/esp32c3/ld/esp32c3.rom.bt_funcs.ld
+++ b/components/esp_rom/esp32c3/ld/esp32c3.rom.bt_funcs.ld
@@ -421,7 +421,7 @@ r_llc_ll_reject_ind_pdu_send = 0x40000f3c;
 r_llc_ll_start_enc_rsp_ack_handler = 0x40000f40;
 r_llc_ll_terminate_ind_ack = 0x40000f44;
 r_llc_ll_unknown_ind_handler = 0x40000f48;
-r_llc_llcp_send = 0x40000f4c;
+/* r_llc_llcp_send = 0x40000f4c; */
 r_llc_llcp_state_set = 0x40000f50;
 r_llc_llcp_trans_timer_set = 0x40000f54;
 r_llc_llcp_tx_check = 0x40000f58;
@@ -506,7 +506,7 @@ r_lld_con_data_len_update = 0x400010a0;
 r_lld_con_data_tx = 0x400010a4;
 r_lld_con_enc_key_load = 0x400010a8;
 r_lld_con_event_counter_get = 0x400010ac;
-r_lld_con_evt_canceled_cbk = 0x400010b0;
+/* r_lld_con_evt_canceled_cbk = 0x400010b0; */
 r_lld_con_evt_duration_min_get = 0x400010b4;
 r_lld_con_evt_max_eff_time_cal = 0x400010b8;
 r_lld_con_evt_sd_evt_time_get = 0x400010bc;
diff --git a/components/esp_rom/esp32s3/ld/esp32s3.rom.bt_funcs.ld b/components/esp_rom/esp32s3/ld/esp32s3.rom.bt_funcs.ld
index 4db94d9779..946f9c2088 100644
--- a/components/esp_rom/esp32s3/ld/esp32s3.rom.bt_funcs.ld
+++ b/components/esp_rom/esp32s3/ld/esp32s3.rom.bt_funcs.ld
@@ -421,7 +421,7 @@ r_llc_ll_reject_ind_pdu_send = 0x40003d98;
 r_llc_ll_start_enc_rsp_ack_handler = 0x40003da4;
 r_llc_ll_terminate_ind_ack = 0x40003db0;
 r_llc_ll_unknown_ind_handler = 0x40003dbc;
-r_llc_llcp_send = 0x40003dc8;
+/* r_llc_llcp_send = 0x40003dc8; */
 r_llc_llcp_state_set = 0x40003dd4;
 r_llc_llcp_trans_timer_set = 0x40003de0;
 r_llc_llcp_tx_check = 0x40003dec;
@@ -507,7 +507,7 @@ r_lld_con_data_len_update = 0x400041c4;
 r_lld_con_data_tx = 0x400041d0;
 r_lld_con_enc_key_load = 0x400041dc;
 r_lld_con_event_counter_get = 0x400041e8;
-r_lld_con_evt_canceled_cbk = 0x400041f4;
+/* r_lld_con_evt_canceled_cbk = 0x400041f4; */
 r_lld_con_evt_duration_min_get = 0x40004200;
 r_lld_con_evt_max_eff_time_cal = 0x4000420c;
 r_lld_con_evt_sd_evt_time_get = 0x40004218;