diff --git a/app/scanner2/device_user.cpp b/app/scanner2/device_user.cpp
index 0117e42d..1e6fffa8 100644
--- a/app/scanner2/device_user.cpp
+++ b/app/scanner2/device_user.cpp
@@ -260,7 +260,14 @@ HGResult DeviceUser::Open()
     }
     else
     {
-        return HGSane_OpenSelectedDevice(m_source, m_wnd, &m_saneDev);
+        HGChar errInfo[256];
+        HGResult ret = HGSane_OpenSelectedDevice(m_source, m_wnd, &m_saneDev, errInfo, 256);
+        if (HGBASE_ERR_OK != ret)
+        {
+            QMessageBox::information(m_wnd, tr("Prompt"), errInfo);
+        }
+
+        return ret;
     }    
 }
 
@@ -281,7 +288,13 @@ HGResult DeviceUser::OpenDefault()
     else
     {
         HGChar errInfo[256];
-        return HGSane_OpenDevice(m_source, 0, &m_saneDev, errInfo, 256);
+        HGResult ret = HGSane_OpenDevice(m_source, 0, &m_saneDev, errInfo, 256);
+        if (HGBASE_ERR_OK != ret)
+        {
+            QMessageBox::information(m_wnd, tr("Prompt"), errInfo);
+        }
+
+        return ret;
     }
 }
 
diff --git a/modules/sane_user/HGSane.cpp b/modules/sane_user/HGSane.cpp
index e5d4ba2e..7cfa255e 100644
--- a/modules/sane_user/HGSane.cpp
+++ b/modules/sane_user/HGSane.cpp
@@ -180,7 +180,7 @@ HGResult HGAPI HGSane_OpenDevice(HGSaneSource source, HGUInt index, HGSaneDevice
     return HGBASE_ERR_OK;
 }
 
-HGResult HGAPI HGSane_OpenSelectedDevice(HGSaneSource source, HGWindow parent, HGSaneDevice* dev)
+HGResult HGAPI HGSane_OpenSelectedDevice(HGSaneSource source, HGWindow parent, HGSaneDevice* dev, HGChar* errInfo, HGUInt errInfoLen)
 {
     if (NULL == source)
     {
@@ -189,7 +189,7 @@ HGResult HGAPI HGSane_OpenSelectedDevice(HGSaneSource source, HGWindow parent, H
 
     HGSaneSourceImpl* saneSourceImpl = (HGSaneSourceImpl*)source;
     class HGSaneDeviceImpl* saneDeviceImpl = NULL;
-    HGResult ret = saneSourceImpl->OpenSelectedDevice(parent, &saneDeviceImpl);
+    HGResult ret = saneSourceImpl->OpenSelectedDevice(parent, &saneDeviceImpl, errInfo, errInfoLen);
     if (HGBASE_ERR_OK != ret)
     {
         return ret;
diff --git a/modules/sane_user/HGSane.h b/modules/sane_user/HGSane.h
index 411de9af..6c3ce585 100644
--- a/modules/sane_user/HGSane.h
+++ b/modules/sane_user/HGSane.h
@@ -71,7 +71,7 @@ HGEXPORT HGResult HGAPI HGSane_GetDeviceNameWithIndex(HGSaneSource source, HGUIn
 
 HGEXPORT HGResult HGAPI HGSane_OpenDevice(HGSaneSource source, HGUInt index, HGSaneDevice *dev, HGChar *errInfo, HGUInt errInfoLen);
 
-HGEXPORT HGResult HGAPI HGSane_OpenSelectedDevice(HGSaneSource source, HGWindow parent, HGSaneDevice* dev);
+HGEXPORT HGResult HGAPI HGSane_OpenSelectedDevice(HGSaneSource source, HGWindow parent, HGSaneDevice* dev, HGChar* errInfo, HGUInt errInfoLen);
 
 HGEXPORT HGResult HGAPI HGSane_CloseDevice(HGSaneDevice dev);
 
diff --git a/modules/sane_user/HGSaneImpl.cpp b/modules/sane_user/HGSaneImpl.cpp
index 0e992fd3..70f5e9bf 100644
--- a/modules/sane_user/HGSaneImpl.cpp
+++ b/modules/sane_user/HGSaneImpl.cpp
@@ -507,7 +507,7 @@ HGResult HGSaneSourceImpl::OpenDevice(HGUInt index, HGSaneDeviceImpl** deviceImp
 	return HGBASE_ERR_OK;
 }
 
-HGResult HGSaneSourceImpl::OpenSelectedDevice(HGWindow parent, class HGSaneDeviceImpl** deviceImpl)
+HGResult HGSaneSourceImpl::OpenSelectedDevice(HGWindow parent, class HGSaneDeviceImpl** deviceImpl, HGChar* errInfo, HGUInt errInfoLen)
 {
 	if (NULL == deviceImpl)
 	{
@@ -524,7 +524,22 @@ HGResult HGSaneSourceImpl::OpenSelectedDevice(HGWindow parent, class HGSaneDevic
         GetDeviceName(i, name, 256);
 
         SANE_Handle handle = NULL;
-        m_saneApi.sane_open_api(name, &handle);
+        SANE_Status stat = m_saneApi.sane_open_api(name, &handle);
+        if (SANE_STATUS_GOOD != stat)
+        {
+            if (NULL != errInfo)
+            {
+                const char* err = m_saneApi.sane_strstatus_api(stat);
+                if (NULL != err && errInfoLen >= strlen(err) + 1)
+                {
+                    strcpy(errInfo, err);
+                }
+            }
+
+            if (1 == count)
+                return HGBASE_ERR_FAIL;
+        }
+
         if (NULL != handle)
         {
             HGChar sn[256] = {0};
@@ -553,7 +568,18 @@ HGResult HGSaneSourceImpl::OpenSelectedDevice(HGWindow parent, class HGSaneDevic
         if (devs[i].id == id)
         {
             strcpy(devName, devs[i].name.c_str());
-            m_saneApi.sane_open_api(devs[i].name.c_str(), &handle);
+            SANE_Status stat = m_saneApi.sane_open_api(devs[i].name.c_str(), &handle);
+            if (SANE_STATUS_GOOD != stat)
+            {
+                if (NULL != errInfo)
+                {
+                    const char* err = m_saneApi.sane_strstatus_api(stat);
+                    if (NULL != err && errInfoLen >= strlen(err) + 1)
+                    {
+                        strcpy(errInfo, err);
+                    }
+                }
+            }
             break;
         }
     }
diff --git a/modules/sane_user/HGSaneImpl.hpp b/modules/sane_user/HGSaneImpl.hpp
index c53623a0..dfbcbd8e 100644
--- a/modules/sane_user/HGSaneImpl.hpp
+++ b/modules/sane_user/HGSaneImpl.hpp
@@ -51,7 +51,7 @@ public:
 	HGResult GetDeviceCount(HGUInt *count);
 	HGResult GetDeviceName(HGUInt index, HGChar* name, HGUInt maxLen);
 	HGResult OpenDevice(HGUInt index, class HGSaneDeviceImpl **deviceImpl, HGChar* errInfo, HGUInt errInfoLen);
-	HGResult OpenSelectedDevice(HGWindow parent, class HGSaneDeviceImpl** deviceImpl);
+    HGResult OpenSelectedDevice(HGWindow parent, class HGSaneDeviceImpl** deviceImpl, HGChar* errInfo, HGUInt errInfoLen);
 
 private:
     static HGResult FindFunctions(HGDll dll, const HGChar* saneManu, SANEAPI *saneAPI);