G920F 6.0.1 unlock fail z3x box 27.0

[ 11/4/2016 3:59:00 PM ] Operation: Read Codes
[ 11/4/2016 3:59:00 PM ] Selected model: SM-G920F
[ 11/4/2016 3:59:00 PM ] Software version: 27.0
[ 11/4/2016 3:59:00 PM ]
[ 11/4/2016 3:59:00 PM ] Searching Samsung modem... detected COM28
[ 11/4/2016 3:59:00 PM ] Reading phone info... ok
[ 11/4/2016 3:59:00 PM ] Model: SM-G920F
[ 11/4/2016 3:59:00 PM ] AP version: G920FXXS4DPJ2
[ 11/4/2016 3:59:00 PM ] CSC version: G920FITV4DPH1
[ 11/4/2016 4:00:00 PM ] CP version: G920FXXS4DPIJ
[ 11/4/2016 4:00:00 PM ] Product code: SM-G920FZKAITV
[ 11/4/2016 4:00:00 PM ] Phone SN: R58H95TBKWH
[ 11/4/2016 4:00:00 PM ] Unique number: 081608C843D12602
[ 11/4/2016 4:00:00 PM ] Reading IMEI... ok
[ 11/4/2016 4:00:00 PM ] IMEI: 3543140******* (SIGN: OK)
[ 11/4/2016 4:00:00 PM ] Checking hash file... ok
[ 11/4/2016 4:00:00 PM ] Reading data from phone... error (0)
[ 11/4/2016 4:00:00 PM ] Try downgrade modem if possible