tried without success (did it last night)
phone is 6603 and only lights led to green briefly or blue (fastboot or flashboot as per instructions), it also buzz when holding power + vol up. Flash works (apparently according to logs on flashtool) but then nothing happens only red light when charging. Note that after soldering the cable it behaves same as before.
The other think that doesn't seem to work is trying to flash the kernel, where I get operation not permitted.
I can't say I have the same problem but have tried so many things that thought another one won't hurt as I have two batteries (bought another one thinking it was the culprit).