diff --git a/src/utility/STM32_WPAN/README.md b/src/utility/STM32_WPAN/README.md
index b8b7d7ed..f50589ee 100644
--- a/src/utility/STM32_WPAN/README.md
+++ b/src/utility/STM32_WPAN/README.md
@@ -1,6 +1,6 @@
 
 ## Source
 
-[STMicroelectronics/STM32CubeWB Release v1.19.0](https://github.com/STMicroelectronics/STM32CubeWB/releases/tag/v1.19.0)
-- Application: [BLE_TransparentMode](https://github.com/STMicroelectronics/STM32CubeWB/tree/v1.19.0/Projects/P-NUCLEO-WB55.Nucleo/Applications/BLE/BLE_TransparentMode)
+[STMicroelectronics/STM32CubeWB Release v1.20.0](https://github.com/STMicroelectronics/STM32CubeWB/releases/tag/v1.20.0)
+- Application: [BLE_TransparentMode](https://github.com/STMicroelectronics/STM32CubeWB/tree/v1.20.0/Projects/P-NUCLEO-WB55.Nucleo/Applications/BLE/BLE_TransparentMode)
 
diff --git a/src/utility/STM32_WPAN/ble_bufsize.h b/src/utility/STM32_WPAN/ble_bufsize.h
index 66cc2a5a..c5018420 100644
--- a/src/utility/STM32_WPAN/ble_bufsize.h
+++ b/src/utility/STM32_WPAN/ble_bufsize.h
@@ -1,6 +1,6 @@
 /*****************************************************************************
  * @file    ble_bufsize.h
- * @author  MDG
+ *
  * @brief   Definition of BLE stack buffers size
  *****************************************************************************
  * @attention
@@ -49,7 +49,7 @@
  */
 #define BLE_MEM_BLOCK_SIZE                   32
 
-#if (SLAVE_ONLY != 0) ||(BASIC_FEATURES != 0)
+#if (SLAVE_ONLY != 0) || (BASIC_FEATURES != 0)
 #define BLE_MEM_BLOCK_X_PTX(n_link)           0
 #else
 #define BLE_MEM_BLOCK_X_PTX(n_link)           (n_link)
diff --git a/src/utility/STM32_WPAN/shci.h b/src/utility/STM32_WPAN/shci.h
index 30ae10cb..59c6fd46 100644
--- a/src/utility/STM32_WPAN/shci.h
+++ b/src/utility/STM32_WPAN/shci.h
@@ -882,6 +882,7 @@ extern "C" {
 #define SHCI_C2_CONFIG_CONFIG1_BIT0_BLE_NVM_DATA_TO_SRAM              (1<<0)
 #define SHCI_C2_CONFIG_CONFIG1_BIT1_THREAD_NVM_DATA_TO_INTERNAL_FLASH (0<<1)
 #define SHCI_C2_CONFIG_CONFIG1_BIT1_THREAD_NVM_DATA_TO_SRAM           (1<<1)
+#define SHCI_C2_CONFIG_CONFIG1_BIT2_SET_EUI64_FORMAT                  (1<<2)
 
 /**
  * EvtMask1
@@ -1340,7 +1341,9 @@ typedef struct {
   *                               1 - BLE NVM Data are written in SRAM cache pointed by BleNvmRamAddress
   *                     - bit1 :  0 - THREAD NVM Data  data are flushed in internal secure flash
   *                               1 - THREAD NVM Data are written in SRAM cache pointed by ThreadNvmRamAddress
-  *                     - bit2 to bit7 : Unused, shall be set to 0
+  *                     - bit2 :  0 - Thread EUI64 is set to new (and current) format
+  *                               1 - Thread EUI64 is set to old format
+  *                     - bit3 to bit7 : Unused, shall be set to 0
   *                    uint8_t EvtMask1 :
   *                            When a bit is set to 0, the event is not reported
   *                            bit0 : Asynchronous Event with Sub Evt Code 0x9201 (= SHCI_SUB_EVT_ERROR_NOTIF)