diff --git a/app/src/main/cpp/PhoneDevice.cpp b/app/src/main/cpp/PhoneDevice.cpp
index ecb8836e..de1416c9 100644
--- a/app/src/main/cpp/PhoneDevice.cpp
+++ b/app/src/main/cpp/PhoneDevice.cpp
@@ -396,7 +396,7 @@ bool CPhoneDevice::SelfTest(std::string& result)
     if (bv > 0)
     {
         bv -= bv % 100;
-        result += "电池电压：" + std::to_string((float)bv / 1000) + "\r\n";
+        result += std::string("电池电压：") + std::to_string(bv / 1000) + std::string(".") + std::to_string((bv % 1000) / 100) + "\r\n";
     }
 
     fs::space_info si = fs::space("/data");
@@ -636,6 +636,7 @@ bool CPhoneDevice::QuerySystemProperties(std::map<std::string, std::string>& pro
         {
             it->second = std::to_string(m_signalLevel);
         }
+        /*
         else if (startsWith(it->first, PROP_JAVA_PREFIX))
         {
             if (powerInfo.empty())
@@ -648,6 +649,7 @@ bool CPhoneDevice::QuerySystemProperties(std::map<std::string, std::string>& pro
                 it->second = it2->second;
             }
         }
+         */
     }
 
     std::map<std::string, std::string>::iterator it = properties.find(PROP_BATTERY_CURRENT);