I have Links Station 420D. I want to factory reset it using the function button but I am not able to. It says: "Turn the LinkStation on with holding down the function button. The function LED will flash blue. Press the function button again while the LED is flashing.The status LED will flash blue. It will start flashing amber when initialization begins." I have tried this many times but it only ends up booting into the previous setup after both light has blinked blue for a while. Maybe I am not doing it right? First I hold down the function button. I turn it on, but how long do I hold down the function button? When do I press it the second time and how long do I hold it the second time? I'm pretty sure I'm doing it wrong somehow, so if someone could confirm the correct sequence with timing it would be great.