diff --git a/pc_firm/dr_adc121s051/dr_adc121s051.c b/pc_firm/dr_adc121s051/dr_adc121s051.c
index cc6a58d..d59c444 100644
--- a/pc_firm/dr_adc121s051/dr_adc121s051.c
+++ b/pc_firm/dr_adc121s051/dr_adc121s051.c
@@ -1388,11 +1388,17 @@ maa_async_state_t maa_async_get_state(void)
     return g_maa_ctx.state;
 }
 
+/*==============================================================================
+ * 비동기 측정 상태 IDLE로 초기화 - BLE 연결이 끊어지는 경우 먹통 현상 방지
+ *============================================================================*/
 void maa_async_abort(void)
 {
-    if (g_maa_ctx.state != MAA_ASYNC_IDLE) {
+    if (g_maa_ctx.state != MAA_ASYNC_IDLE)
+    {
         ADC_LOG("maa_async_abort: aborting from state %d", g_maa_ctx.state);
-        g_maa_ctx.state = MAA_ASYNC_IDLE;
+        g_maa_ctx.state = MAA_ASYNC_IDLE;   // 측정 상태 IDLE로 초기화
+        g_maa_ctx.on_complete_cb = NULL;    // abort 후 콜백 호출 방지
+        dr_piezo_power_off();               // 전체 측정 중간에 끊기는 경우 Piezo TX/RX Sleep
     }
 }
 
diff --git a/project/ble_peripheral/ble_app_bladder_patch/main.c b/project/ble_peripheral/ble_app_bladder_patch/main.c
index 52a17d3..968d250 100644
--- a/project/ble_peripheral/ble_app_bladder_patch/main.c
+++ b/project/ble_peripheral/ble_app_bladder_patch/main.c
@@ -1032,11 +1032,14 @@ static void ble_evt_handler(ble_evt_t const * p_ble_evt, void * p_context)
 
     switch (p_ble_evt->header.evt_id)
     {
+        /* BLE 연결이 끊어지는 경우 */
         case BLE_GAP_EVT_DISCONNECTED:
             DBG_PRINTF("[BLE] Disconnected\r\n");
             ble_connection_st = 0;
             m_conn_handle = BLE_CONN_HANDLE_INVALID;
             m_tx_in_progress = false;
+
+            maa_async_abort();  // 비동기 측정 상태에 의한 먹통 현상 방지
             
             if (device_status == true)
             {