Need help getting phone OS back...

[DataCentre]

I tried to downgrade my 4.0 beta 2 back to 3.1.3. No luck. Now I can't even load back up 4.0 beta 2. Keep getting error code 1611.

Need help please. First time running into this problem.

 

[Alli]

Our own iMuggle has written a tutorial here.