W600i with "CONFIGURATION ERROR - CONTACT DIALER"

[safd]

Try a higher ver.of XS++ (but not the newest >its buggy at the moment(4ME))
and which file extension have ur files u want to flash?

[Taurus3]

before flashing backup gdfs, and keep it in safe file, then go to flash fs and cust pack of your region you will find in top sony download area.

[TheRascal]

OK. The guys from TOPSONY have written the tutorials for flashing and other staff. Why no one didn't read them??? Here are links for the tutorials - SE Tools video tutorial and XS++ 2.x flashing guide