Sat_Help, can you take it to Nokia Care & ask them to install the filmware for you? Or the Nokia Store/Dealer that you bought it from - In my country it's free to update if it's purchased at the Nokia Dealer (not talking about Nokia Care) & they open at night & weekends. Assuming you're in a country where N9 is released, they should be able to do it.

You trying to troubleshoot by yourself may cause more problems