i read now on another topic that XS++ and Phone XS 2.10 don't work with W550i and that Phone XS 2.01 does, i don't know if thats correct, but you could try it, HEREis the link to it. I really hope it will work, don't use the computer for anything else and close the progs that might use the computer resources, charge the battery and give it another go. if it doesn't work, than go to service, the phone is not dead, it needs just a reflash, they will do it with a service cable.