Sony Ericsson Z520a does not function.

Hello,

I tried to unlock and debrand the Z520a. I flashed Main and FS with XS++ then I flashed the GDFS. Now when I turn on the phone, it shows a status bar that goes 1/4 of the wy through then freezes. Can someone please tell me how to fix this? Thank you in advance.

Did you flash the phone with a custom pack or finalize it?

Try reflashing again.