Cleaner device reattachment after firmware update

Software/PC_Application/Device/firmwareupdatedialog.cpp

@@ -90,18 +90,28 @@ void FirmwareUpdateDialog::abortWithError(QString error)
 
 void FirmwareUpdateDialog::timerCallback()
 {
-    if(state != State::WaitingForReboot) {
-        abortWithError("Response timed out");
-    } else {
+    switch(state) {
+    case State::WaitingForReboot: {
         // Currently waiting for the reboot, check device list
         auto devices = Device::GetDevices();
         if(devices.find(serialnumber) != devices.end()) {
             // the device rebooted and is available again
             addStatus("...device enumerated, update complete");
-            timer.stop();
-            emit DeviceRebooted(serialnumber);
+            state = State::WaitBeforeInitializing;
+            timer.start(3000);
         }
     }
+        break;
+    case State::WaitBeforeInitializing:
+        // Device had enough time to initialize, indicate that rebooted device is ready
+        timer.stop();
+        emit DeviceRebooted(serialnumber);
+        delete this;
+        break;
+    default:
+        abortWithError("Response timed out");
+        break;
+    }
 }
 
 void FirmwareUpdateDialog::receivedAck()

Software/PC_Application/Device/firmwareupdatedialog.h

@@ -51,6 +51,7 @@ private:
         TransferringData,
         TriggeringUpdate,
         WaitingForReboot,
+        WaitBeforeInitializing,
     };
     State state;
     unsigned int transferredBytes;