can't flash G965F with Z3X ?

when i try to flash a got only this

File analysis... OK
Total file size: 0xAA61E467 (2726 Mb)
Searching USB Flash interface... COM68 detected
Setup connection... OK
Reading PIT from phone... OK
Flashing done (time - 00:00:01)

Done with Samsung Tool PRO v.31.0

do we have to wait new update??