diff --git a/src/common/pm3process.cpp b/src/common/pm3process.cpp
index 76c13b8..bb102e4 100644
--- a/src/common/pm3process.cpp
+++ b/src/common/pm3process.cpp
@@ -22,6 +22,7 @@ void PM3Process::connectPM3(const QString& path, const QStringList args)
     QString result;
     Util::ClientType clientType;
     setRequiringOutput(true);
+	QRegularExpression osPattern("(os:\\s+|OS\\.+\\s+)");
 
     // stash for reconnect
     currPath = path;
@@ -44,7 +45,8 @@ void PM3Process::connectPM3(const QString& path, const QStringList args)
             {
                 waitForReadyRead(200);
                 result += *requiredOutput;
-                if(result.contains("os: "))
+                // if(result.contains("os: "))
+                if(osPattern.match(result).hasMatch())
                     break;
             }
             setRequiringOutput(false);
@@ -53,12 +55,16 @@ void PM3Process::connectPM3(const QString& path, const QStringList args)
         {
             clientType = Util::CLIENTTYPE_OFFICIAL;
         }
-        if(result.contains("os: ")) // make sure the PM3 is connected
+        // if(result.contains("os: ")) // make sure the PM3 is connected
+		if(osPattern.match(result).hasMatch())
         {
             emit changeClientType(clientType);
-            result = result.mid(result.indexOf("os: "));
+            // result = result.mid(result.indexOf("os: "));
+			QRegularExpressionMatch osMatch = osPattern.match(result);
+			result = result.mid(osMatch.capturedStart());
             result = result.left(result.indexOf("\n"));
-            result = result.mid(4, result.indexOf(" ", 4) - 4);
+            // result = result.mid(4, result.indexOf(" ", 4) - 4);
+			result = result.mid(osMatch.capturedLength(), result.indexOf(" ", osMatch.capturedLength()) - osMatch.capturedLength());
             emit PM3StatedChanged(true, result);
         }
         else