diff -r 1b39655331a3 -r 6e82ae192c3a mtpfws/mtpfw/dataproviders/devdp/src/cmtpopensession.cpp
--- a/mtpfws/mtpfw/dataproviders/devdp/src/cmtpopensession.cpp	Fri Apr 16 15:51:48 2010 +0300
+++ b/mtpfws/mtpfw/dataproviders/devdp/src/cmtpopensession.cpp	Mon May 03 13:19:02 2010 +0300
@@ -82,7 +82,12 @@
 */    
 void CMTPOpenSession::ServiceL()    
     {
-    iSingletons.DpController().WaitForEnumerationComplete();
+    if(iSingletons.DpController().EnumerateState() < CMTPDataProviderController::EEnumeratingPhaseOneDone)
+        {
+        RegisterPendingRequest();
+        return;
+        }
+    
     if(iSingletons.DpController().EnumerateState() < CMTPDataProviderController::EEnumeratingPhaseOneDone)
     	{
     	SendResponseL(EMTPRespCodeDeviceBusy);