You got me wrong Akshay!
Here in Hungary EVERY K550i models are CID51, the old and even the new ones!!
And now that's the problem! I tried perhaps all of the ways to change the new ones to CID52, and every time I got an error!
I mean, maybe T-Mobile or Sony Ericsson team found out a way to keep some of their new models in CID51, because i think they already know we can only flash CID52 phones properly!
So in this case, This thread could be important!
But you're the God here, do as you wish!
P.S.: and I Think SETool 2 Lite is very easy to use
it took me about 3 minutes get used to it!
Oh and by the way, what does it mean, that you subscribed me to this thread? (anyways thanks)