diff --git a/app/src/main/cpp/PhoneDevice.cpp b/app/src/main/cpp/PhoneDevice.cpp
index ca73c134..3c317d38 100644
--- a/app/src/main/cpp/PhoneDevice.cpp
+++ b/app/src/main/cpp/PhoneDevice.cpp
@@ -1019,7 +1019,14 @@ bool CPhoneDevice::QuerySystemProperties(std::map<std::string, std::string>& pro
                 {
                     continue;
                 }
-                snprintf(str, sizeof(str), "%.1f", (val / 1000.0));
+                if (val < 3000)
+                {
+                    strcpy(str, "0");
+                }
+                else
+                {
+                    snprintf(str, sizeof(str), "%.1f", (val / 1000.0));
+                }
                 it->second = std::string(str);
                 break;
             }