diff --git a/src/ATBAPP/ATBDeviceControllerPlugin.cpp b/src/ATBAPP/ATBDeviceControllerPlugin.cpp
index 9c14c17..c81d3a8 100644
--- a/src/ATBAPP/ATBDeviceControllerPlugin.cpp
+++ b/src/ATBAPP/ATBDeviceControllerPlugin.cpp
@@ -171,11 +171,13 @@ void ATBDeviceControllerPlugin::reset()
 void ATBDeviceControllerPlugin::onChangedProgramModeToSELL()
 {
     hw->rtc_setDateTime();
+    hw->mdb_switchWake(0);   // wakeup MDB components
 }
 
 void ATBDeviceControllerPlugin::onChangedProgramModeToSERVICE()
 {
     //hw->dc_autoRequest(true);
+    hw->mdb_switchWake(0);   // wakeup MDB components
 }
 
 void ATBDeviceControllerPlugin::onChangedProgramModeToIDLE()
@@ -183,6 +185,7 @@ void ATBDeviceControllerPlugin::onChangedProgramModeToIDLE()
     //hw->dc_autoRequest(false);  // <-- TODO: ???
 
     this->diag->diagRequest();
+    hw->mdb_switchWake(1);
 
 }