Well, until the last part all functioned!
Then, the ROM...here things went wrong, tried sveral ones and had often the message where it couldn't launch the zip, modified the file as per instructions on XDA, retried, nothing.
I tried a last time, went away for "a sec" and upon my return I had the Sony Ericsson mask, which wouldn't go away.
Tried to check via Flashtool, phone still recognized, phone is seen as in "flasmode" but basically I'm unable to flash anything, nothing seems to be accepted....
Any ideas? Or should I simply throw the phone away?
thanks for the help!
PS tried to look all over the different pages, but didn't find a similar issue - hope I didn't miss anything (which could have saved several hours of stress, anger etc....)