Problem with frp G935F


After auto root the phone hangs on starting "SAMASUNG Galaxy…" and won’t start !

Device: G935F
Operation: Root Phone
Port: COM16 : SAMSUNG Mobile USB Modem #7
Checking for Device… Found [Normal Mode]
Reading Phone Information… OK
Model: SM-G935F
IMEI: 35945707745XXXX
Init Download Mode… OK
Port: COM14 : SAMSUNG Mobile USB Modem #5
Reading Data from Phone… Done
Chipset: LSI7420 [HiSpeed]
Flashing Root Package… Done
Closing Session… Done
Root Success, Now you can Reset FRP.
Elapsed Time: 01:05
[Ultimate Samsung Flasher v0.7]

Can you telle me what’s wrong ?
Thx in advance