Most probably your NV was not cleared, as update.log was not created.
So the fact that you could see your drives for a few seconds is due to something else.

So try clearing NV as Neil suggested (make sure update.log is created and "Success" is written after each command).

If it still doesn't help then can you try using QuickCure3 a few more times? I mean maybe that successful connection was just accidental.
Also can you please check the Crash Log? It's located in the engineering menu, which occurs when you hold and press the large speedometer.