so recently my nokia n9 started to slow down and freeze so i decided to restore and clear the device. After doing so however i couldnt start the phone at all. At first there was a cube in the center of the screen flashing but after a while it went away. Now everytime i start the phone the screen just shows the word nokia in the center for around 10 second then it shuts off the phone again. I have to hold the power button for 5-6 seconds to get the phone to turn on. Normally pushing the on/off button would just make the led on the bottom left corner of the screen to flash and nothing would happen.
I have already tried flashing the device with PR1.2 and 1.1 but im not sure i have dont it correctly as right when i plug my n9 into the pc it turns on and after flashing the n9 still stays on the nokia screen.
Havent got into the phone in 3 days please help!!

how could the flash be successful if you flashed from pr1.2 to pr1.1(downgrading is not allowed)

try flashing to pr1.2 again...take note of any errors in the command prompt and post those errors here for some1 to help...

i was able to quickly take a screenshot of the cmd window before it closed.
I was only able to get the error list
which was:
bb5_rdc_cert_read failed
bb5_rdc_cert_read failed
bb5_rdc_cert_read failed
bb5_rdc_cert_read failed
bb5_rdc_cert_read failed
downgrade disallowed (1329849935)
[Pipe 0] Finishing in error state with status 10

should i try downloading 3gb of firmware again with pr 1.2?

Yes, you need to use the PR1.2 for your device model number (under sim tray).

heres the problem under my sim tray it does not give which version to use. My Nokia N9 is a chinese 16gb black model. Under the sim tray the only numbers are 059J250 and 2011CP3886. However the device was bought in 2011 does that mean anything?
heres a photo i took to show u what it looks like under the sim tray:
http://www.freeimagehosting.net/77xhm

thanks for all the help!

Thanks for helping guys
reflashed couple times with PR1.2 and worked!

Am glad it was resolved.