diff --git a/src/utility/STM32Cube_FW/README.md b/src/utility/STM32Cube_FW/README.md
index e6f6e0ae..0d39a3ef 100644
--- a/src/utility/STM32Cube_FW/README.md
+++ b/src/utility/STM32Cube_FW/README.md
@@ -1,6 +1,6 @@
 
 ## Source
 
-[STMicroelectronics/STM32CubeWB Release v1.16.0](https://github.com/STMicroelectronics/STM32CubeWB/releases/tag/v1.16.0)
-- Application: [BLE_TransparentMode](https://github.com/STMicroelectronics/STM32CubeWB/tree/v1.16.0/Projects/P-NUCLEO-WB55.Nucleo/Applications/BLE/BLE_TransparentMode)
+[STMicroelectronics/STM32CubeWB Release v1.17.0](https://github.com/STMicroelectronics/STM32CubeWB/releases/tag/v1.17.0)
+- Application: [BLE_TransparentMode](https://github.com/STMicroelectronics/STM32CubeWB/tree/v1.17.0/Projects/P-NUCLEO-WB55.Nucleo/Applications/BLE/BLE_TransparentMode)
 
diff --git a/src/utility/STM32Cube_FW/app_conf_default.h b/src/utility/STM32Cube_FW/app_conf_default.h
index 1f17900d..d39492ea 100644
--- a/src/utility/STM32Cube_FW/app_conf_default.h
+++ b/src/utility/STM32Cube_FW/app_conf_default.h
@@ -730,5 +730,6 @@ typedef enum
 #define CFG_OTP_BASE_ADDRESS    OTP_AREA_BASE
 
 #define CFG_OTP_END_ADRESS      OTP_AREA_END_ADDR
+
 #endif
 #endif /*APP_CONF_DEFAULT_H */
diff --git a/src/utility/STM32Cube_FW/ble_bufsize.h b/src/utility/STM32Cube_FW/ble_bufsize.h
index 53cf59a8..d4d28907 100644
--- a/src/utility/STM32Cube_FW/ble_bufsize.h
+++ b/src/utility/STM32Cube_FW/ble_bufsize.h
@@ -103,11 +103,11 @@
 #elif (LL_ONLY != 0)
 #define BLE_FIXED_BUFFER_SIZE_BYTES  6036   /* LL only Full */
 #elif (SLAVE_ONLY != 0)
-#define BLE_FIXED_BUFFER_SIZE_BYTES  6292   /* Peripheral only */
+#define BLE_FIXED_BUFFER_SIZE_BYTES  6300   /* Peripheral only */
 #elif (BASIC_FEATURES != 0)
-#define BLE_FIXED_BUFFER_SIZE_BYTES  6624   /* Basic Features */
+#define BLE_FIXED_BUFFER_SIZE_BYTES  6632   /* Basic Features */
 #else
-#define BLE_FIXED_BUFFER_SIZE_BYTES  7144   /* Full stack */
+#define BLE_FIXED_BUFFER_SIZE_BYTES  7152   /* Full stack */
 #endif
 
 /*
diff --git a/src/utility/STM32Cube_FW/hw_ipcc.c b/src/utility/STM32Cube_FW/hw_ipcc.c
index 3461cbed..c7304823 100644
--- a/src/utility/STM32Cube_FW/hw_ipcc.c
+++ b/src/utility/STM32Cube_FW/hw_ipcc.c
@@ -17,7 +17,6 @@
   ******************************************************************************
   */
 /* USER CODE END Header */
-
 #if defined(STM32WBxx)
 /* Includes ------------------------------------------------------------------*/
 #include "hw.h"
diff --git a/src/utility/STM32Cube_FW/shci.c b/src/utility/STM32Cube_FW/shci.c
index 6348145f..4525656e 100644
--- a/src/utility/STM32Cube_FW/shci.c
+++ b/src/utility/STM32Cube_FW/shci.c
@@ -40,9 +40,9 @@
 uint8_t SHCI_C2_FUS_GetState( SHCI_FUS_GetState_ErrorCode_t *p_error_code )
 {
   /**
-   * A command status event + payload has the same size than the expected command complete
+   * Buffer is large enough to hold command complete with payload
    */
-  uint8_t local_buffer[TL_BLEEVT_CC_BUFFER_SIZE];
+  uint8_t local_buffer[TL_BLEEVT_CC_BUFFER_SIZE + 1];
   TL_EvtPacket_t * p_rsp;
 
   p_rsp = (TL_EvtPacket_t *)local_buffer;
@@ -63,7 +63,7 @@ uint8_t SHCI_C2_FUS_GetState( SHCI_FUS_GetState_ErrorCode_t *p_error_code )
 SHCI_CmdStatus_t SHCI_C2_FUS_FwUpgrade( uint32_t fw_src_add,  uint32_t fw_dest_add )
 {
   /**
-   * TL_BLEEVT_CS_BUFFER_SIZE is 15 bytes so it is large enough to hold the 8 bytes of command parameters
+   * TL_BLEEVT_CC_BUFFER_SIZE is 16 bytes so it is large enough to hold the 8 bytes of command parameters
    * Buffer is large enough to hold command complete without payload
    */
   uint8_t local_buffer[TL_BLEEVT_CC_BUFFER_SIZE];
@@ -153,9 +153,9 @@ SHCI_CmdStatus_t SHCI_C2_FUS_LockAuthKey( void )
 SHCI_CmdStatus_t SHCI_C2_FUS_StoreUsrKey( SHCI_C2_FUS_StoreUsrKey_Cmd_Param_t *pParam, uint8_t *p_key_index )
 {
   /**
-   * Buffer is large enough to hold command complete without payload
+   * Buffer is large enough to hold command complete with payload
    */
-  uint8_t local_buffer[TL_BLEEVT_CC_BUFFER_SIZE];
+  uint8_t local_buffer[TL_BLEEVT_CC_BUFFER_SIZE + 1];
   TL_EvtPacket_t * p_rsp;
   uint8_t local_payload_len;
 
@@ -431,9 +431,9 @@ SHCI_CmdStatus_t SHCI_C2_CONCURRENT_SetMode( SHCI_C2_CONCURRENT_Mode_Param_t Mod
 SHCI_CmdStatus_t SHCI_C2_CONCURRENT_GetNextBleEvtTime( SHCI_C2_CONCURRENT_GetNextBleEvtTime_Param_t *pParam )
 {
   /**
-   * Buffer is large enough to hold command complete without payload
+   * Buffer is large enough to hold command complete with payload
    */
-  uint8_t local_buffer[TL_BLEEVT_CC_BUFFER_SIZE];
+  uint8_t local_buffer[TL_BLEEVT_CC_BUFFER_SIZE+4];
   TL_EvtPacket_t * p_rsp;
 
   p_rsp = (TL_EvtPacket_t *)local_buffer;
@@ -566,7 +566,7 @@ SHCI_CmdStatus_t SHCI_C2_Reinit( void )
 SHCI_CmdStatus_t SHCI_C2_ExtpaConfig(uint32_t gpio_port, uint16_t gpio_pin_number, uint8_t gpio_polarity, uint8_t gpio_status)
 {
   /**
-   * TL_BLEEVT_CS_BUFFER_SIZE is 15 bytes so it is large enough to hold the 8 bytes of command parameters
+   * TL_BLEEVT_CC_BUFFER_SIZE is 16 bytes so it is large enough to hold the 8 bytes of command parameters
    * Buffer is large enough to hold command complete without payload
    */
   uint8_t local_buffer[TL_BLEEVT_CC_BUFFER_SIZE];
@@ -590,7 +590,7 @@ SHCI_CmdStatus_t SHCI_C2_ExtpaConfig(uint32_t gpio_port, uint16_t gpio_pin_numbe
 SHCI_CmdStatus_t SHCI_C2_SetFlashActivityControl(SHCI_C2_SET_FLASH_ACTIVITY_CONTROL_Source_t Source)
 {
   /**
-   * TL_BLEEVT_CS_BUFFER_SIZE is 15 bytes so it is large enough to hold the 1 byte of command parameter
+   * TL_BLEEVT_CC_BUFFER_SIZE is 16 bytes so it is large enough to hold the 1 byte of command parameter
    * Buffer is large enough to hold command complete without payload
    */
   uint8_t local_buffer[TL_BLEEVT_CC_BUFFER_SIZE];
diff --git a/src/utility/STM32Cube_FW/shci.h b/src/utility/STM32Cube_FW/shci.h
index d2aa0a58..750fa972 100644
--- a/src/utility/STM32Cube_FW/shci.h
+++ b/src/utility/STM32Cube_FW/shci.h
@@ -535,7 +535,7 @@ extern "C" {
    * - bit 4:   1: CS Algo #2 supported             0: CS Algo #2 not supported
    * - bit 5:   1: Reduced GATT database in NVM     0: Full GATT database in NVM
    * - bit 6:   1: GATT caching is used             0: GATT caching is not used
-   * - bit 7:   1: LE Power Class 1                 0: LE Power Classe 2-3
+   * - bit 7:   1: LE Power Class 1                 0: LE Power Class 2-3
    * - other bits: complete with Options_extension flag
    */
   uint8_t Options;
@@ -668,6 +668,7 @@ extern "C" {
    */
 #define SHCI_C2_BLE_INIT_BLE_CORE_5_2               11
 #define SHCI_C2_BLE_INIT_BLE_CORE_5_3               12
+#define SHCI_C2_BLE_INIT_BLE_CORE_5_4               13
 
    /**
    * LsSource information
@@ -904,7 +905,7 @@ extern "C" {
 #define FUS_DEVICE_INFO_TABLE_VALIDITY_KEYWORD    (0xA94656B9)
 
 /*
-  *   At startup, the informations relative to the wireless binary are stored in RAM trough a structure defined by
+  *   At startup, the information relative to the wireless binary are stored in RAM through a structure defined by
   *   MB_WirelessFwInfoTable_t.This structure contains 4 fields (Version,MemorySize, Stack_info and a reserved part)
   *   each of those coded on 32 bits as shown on the table below:
   *
@@ -1150,7 +1151,7 @@ typedef struct {
   * @brief Starts the LLD tests CLI
   *
   * @param  param_size : Nb of bytes
-  * @param  p_param : pointeur with data to give from M4 to M0
+  * @param  p_param : pointer with data to give from M4 to M0
   * @retval Status
   */
   SHCI_CmdStatus_t SHCI_C2_LLDTESTS_Init( uint8_t param_size, uint8_t * p_param );
@@ -1160,7 +1161,7 @@ typedef struct {
   * @brief Starts the LLD tests BLE
   *
   * @param  param_size : Nb of bytes
-  * @param  p_param : pointeur with data to give from M4 to M0
+  * @param  p_param : pointer with data to give from M4 to M0
   * @retval Status
   */
   SHCI_CmdStatus_t SHCI_C2_BLE_LLD_Init( uint8_t param_size, uint8_t * p_param );
@@ -1260,7 +1261,7 @@ typedef struct {
 
   /**
    * SHCI_GetWirelessFwInfo
-   * @brief This function read back the informations relative to the wireless binary loaded.
+   * @brief This function read back the information relative to the wireless binary loaded.
    *         Refer yourself to MB_WirelessFwInfoTable_t structure to get the significance
    *         of the different parameters returned.
    * @param  pWirelessInfo : Pointer to WirelessFwInfo_t.
diff --git a/src/utility/STM32Cube_FW/shci_tl.c b/src/utility/STM32Cube_FW/shci_tl.c
index d1d35f5b..60380251 100644
--- a/src/utility/STM32Cube_FW/shci_tl.c
+++ b/src/utility/STM32Cube_FW/shci_tl.c
@@ -154,7 +154,7 @@ void shci_send( uint16_t cmd_code, uint8_t len_cmd_payload, uint8_t * p_cmd_payl
   pCmdBuffer->cmdserial.cmd.plen = len_cmd_payload;
 
   memcpy(pCmdBuffer->cmdserial.cmd.payload, p_cmd_payload, len_cmd_payload );
-
+  CmdRspStatusFlag = SHCI_TL_CMD_RESP_WAIT;
   shciContext.io.Send(0,0);
 
   shci_cmd_resp_wait(SHCI_TL_DEFAULT_TIMEOUT);
@@ -251,7 +251,6 @@ static void TlUserEvtReceived(TL_EvtPacket_t *shcievt)
 /* Weak implementation ----------------------------------------------------------------*/
 __WEAK void shci_cmd_resp_wait(uint32_t timeout)
 {
-  CmdRspStatusFlag = SHCI_TL_CMD_RESP_WAIT;
   for (unsigned long start = millis(); (millis() - start) < timeout;) {
     if (CmdRspStatusFlag == SHCI_TL_CMD_RESP_RELEASE) {
       break;
diff --git a/src/utility/STM32Cube_FW/tl.h b/src/utility/STM32Cube_FW/tl.h
index 63126b3d..8e8c6cbc 100644
--- a/src/utility/STM32Cube_FW/tl.h
+++ b/src/utility/STM32Cube_FW/tl.h
@@ -58,12 +58,8 @@ extern "C" {
 #define TL_BLEEVT_CS_OPCODE            (0x0F)
 #define TL_BLEEVT_VS_OPCODE            (0xFF)
 
-#define TL_BLEEVT_CS_PACKET_SIZE       (TL_EVT_HDR_SIZE + sizeof(TL_CsEvt_t))
-#define TL_BLEEVT_CS_BUFFER_SIZE       (sizeof(TL_PacketHeader_t) + TL_BLEEVT_CS_PACKET_SIZE)
-
 #define TL_BLEEVT_CC_PACKET_SIZE       (TL_EVT_HDR_SIZE + sizeof(TL_CcEvt_t))
 #define TL_BLEEVT_CC_BUFFER_SIZE       (sizeof(TL_PacketHeader_t) + TL_BLEEVT_CC_PACKET_SIZE)
-
 /* Exported types ------------------------------------------------------------*/
 /**< Packet header */
 typedef PACKED_STRUCT
@@ -93,7 +89,7 @@ typedef PACKED_STRUCT
 {
   uint8_t   numcmd;
   uint16_t  cmdcode;
-  uint8_t   payload[255];
+  uint8_t   payload[2];
 } TL_CcEvt_t;
 
 /**
@@ -102,7 +98,7 @@ typedef PACKED_STRUCT
 typedef PACKED_STRUCT
 {
   uint16_t  subevtcode;
-  uint8_t   payload[255];
+  uint8_t   payload[2];
 } TL_AsynchEvt_t;
 
 /**
@@ -112,7 +108,7 @@ typedef PACKED_STRUCT
 {
   uint8_t   evtcode;
   uint8_t   plen;
-  uint8_t   payload[255];
+  uint8_t   payload[2];
 } TL_Evt_t;
 
 typedef PACKED_STRUCT
diff --git a/src/utility/STM32Cube_FW/tl_mbox.c b/src/utility/STM32Cube_FW/tl_mbox.c
index ff219b97..11393162 100644
--- a/src/utility/STM32Cube_FW/tl_mbox.c
+++ b/src/utility/STM32Cube_FW/tl_mbox.c
@@ -99,7 +99,6 @@ void TL_Init( void )
   TL_RefTable.p_sys_table = &TL_SysTable;
   TL_RefTable.p_mem_manager_table = &TL_MemManagerTable;
   TL_RefTable.p_traces_table = &TL_TracesTable;
-
 #if 0
   TL_RefTable.p_mac_802_15_4_table = &TL_Mac_802_15_4_Table;
   TL_RefTable.p_zigbee_table = &TL_Zigbee_Table;