Hi can anyone help my w880i wont start up after flashing from the tutorial on how to unlock using Setool

What exactly happened? are you getting any response at all? for example red light flashing or not.

Thank you for your response
I have two w880i to play with, the first was updated to cid 53 because I hadn't read any info on any forums and went straight to SEUS, the second one I flashed and then it would not start up, so after some more reading I managed to flash it with a generic FW and unlock it using Sim lock gen, so now I'm in the process of trying to unlock the sim card on the first w880i which has firmware with cid53, I have found a tutorial called "Debrand All DB2020 CID53 SE Phones!" giving direction and programs like Far manager, JDFlasher,SEFS tools,main2raw. Do you think this is possible or am I wasting my time?

debranding is not the same with unlocking the network...

I thought I might start at debranding as this w880i is locked to o2 and I live in Greece, What Iwould like to know is if its possible to unlock the network after doing a debrand, or a better question is can it be debranded and then unlocked,it would be greatly appreciated if I could get some light on this issue

Debrand then unlock is good.