diff --git a/README.md b/README.md
index cc92f9983..e8853d4c3 100755
--- a/README.md
+++ b/README.md
@@ -57,7 +57,6 @@ The DSoftBus directory structure is as follows:
 >**NOTE**
 >
 >- The permissions ohos.permission.DISTRIBUTED_DATASYNC and ohos.permission.DISTRIBUTED_SOFTBUS_CENTER are required for remote procedure calls (RPCs) across devices.
->- To make a mobile phone visible to other devices, choose **Settings** > **Super Device** > **This device** > **Visible to**, and select **All nearby devices**.
 
 **1. Discovery**
 
@@ -74,14 +73,14 @@ The DSoftBus directory structure is as follows:
 
     // Publish information.
     typedef struct {
-        int publishId; // Publish ID.
-        DiscoverMode mode; // Discovery mode.
-        ExchangeMedium medium; // Medium used for device discovery.
-        ExchangeFreq freq; // Device discovery frequency.
-        const char *capability; // Capability of the device that can be discovered.
+        int publishId;                 // Publish ID.
+        DiscoverMode mode;             // Publish mode.
+        ExchangeMedium medium;         // Medium used for publishing the service.
+        ExchangeFreq freq;             // Service publishing frequency.
+        const char *capability;        // Capability of the device that can be discovered.
         unsigned char *capabilityData; // Custom data for service publishing
-        unsigned int dataLen; // Length of the data.
-        bool ranging; // Whether to measure the distance.
+        unsigned int dataLen;          // Length of the data.
+        bool ranging;                  // Whether to measure the distance.
     } PublishInfo;
 
     // Publish a service.
diff --git a/core/common/dfx/hisysevent_adapter/softbus_hisysevt_discreporter.c b/core/common/dfx/hisysevent_adapter/softbus_hisysevt_discreporter.c
index 515b345eb..d75c9120a 100644
--- a/core/common/dfx/hisysevent_adapter/softbus_hisysevt_discreporter.c
+++ b/core/common/dfx/hisysevent_adapter/softbus_hisysevt_discreporter.c
@@ -474,6 +474,16 @@ int32_t SoftbusRecordFirstDiscTime(SoftBusDiscMedium medium, uint64_t costTime)
     return SOFTBUS_OK;
 }
 
+static inline uint32_t AddAndCheckOverflowUint32(uint32_t a, uint32_t b)
+{
+    return (a > UINT32_MAX - b) ? UINT32_MAX : (a + b);
+}
+
+static inline uint64_t AddAndCheckOverflowUint64(uint64_t a, uint64_t b)
+{
+    return (a > UINT64_MAX - b) ? UINT64_MAX : (a + b);
+}
+
 int32_t SoftbusRecordBleDiscDetails(char *moduleName, uint64_t duration, uint32_t repTimes, uint32_t devNum,
                                     uint32_t discTimes)
 {
@@ -491,10 +501,11 @@ int32_t SoftbusRecordBleDiscDetails(char *moduleName, uint64_t duration, uint32_
             return SOFTBUS_ERR;
         }
     }
-    discDetailNode->devNum += devNum;
-    discDetailNode->discTimes += discTimes;
-    discDetailNode->duration += duration;
-    discDetailNode->repTimes += repTimes;
+
+    discDetailNode->devNum = AddAndCheckOverflowUint32(discDetailNode->devNum, devNum);
+    discDetailNode->discTimes = AddAndCheckOverflowUint32(discDetailNode->discTimes, discTimes);
+    discDetailNode->duration = AddAndCheckOverflowUint64(discDetailNode->duration, duration);
+    discDetailNode->repTimes = AddAndCheckOverflowUint32(discDetailNode->repTimes, repTimes);
     (void)SoftBusMutexUnlock(&g_discDetailLock);
     return SOFTBUS_OK;
 }
diff --git a/core/discovery/ble/softbus_ble/src/disc_ble.c b/core/discovery/ble/softbus_ble/src/disc_ble.c
index d0fc1e310..5534346dd 100644
--- a/core/discovery/ble/softbus_ble/src/disc_ble.c
+++ b/core/discovery/ble/softbus_ble/src/disc_ble.c
@@ -497,7 +497,9 @@ static void ProcessDisNonPacket(const BroadcastReportInfo *reportInfo, char rssi
     add.medium = BLE;
 
     if (ProcessHashAccount(foundInfo)) {
-        DISC_LOGI(DISC_BLE, "start report found device, callCount=%{public}u", callCount++);
+        DISC_LOGI(DISC_BLE, "start report found device, addrNum=%{public}u, addr[0].type=%{public}u,"
+            "capabilityBitmap=%{public}u, callCount=%{public}u", foundInfo->addrNum, foundInfo->addr[0].type,
+            foundInfo->capabilityBitmap[0], callCount++);
         uint32_t tempCap = 0;
         DeConvertBitMap(&tempCap, foundInfo->capabilityBitmap, foundInfo->capabilityBitmapNum);
         if (tempCap == 0) {