g935F emergency call after unlock

first i have been on this device over 5 day of search

after unlock without root emergency call

imei and SN is ok
*#0011# IMEI status :NG

Model: SM-G935FD
AP version: G935FXXS1DQHM
CSC version: G935FOJV1DQEB
CP version: G935FXXU1DQE8
Product code: XSG
Phone SN: RF8J11F47DT
IMEI: 3556120854xxxxx
IMEI2: 3556120854xxxxx
Unique number: CE12160C8C3728880C
Reading IMEI... OK
IMEI: 3556120854xxxxx (SIGN: NG_SIGN)
IMEI 2: 3556120854xxxxx (SIGN: NG_NONE)

Done with Samsung Tool PRO v.31.3

root with EngROOT_G935F_QD2_7.0 octopus
Patch Certificate done by Z3X

downgrade to KSA-G935FXXU1BPLB totally official
root by CF-Auto-Root-hero2lte-hero2ltexx-smg935f.tar
Patch Certificate done by Z3X

upgrade again to 7 G935FXXS1DQHM and flash modem only 6.0.1 CP_G935FXXU1APB6 Patch Certificate done by Z3X
still Emergency callll

:mad::mad::mad::mad::mad::mad::mad::mad::mad::mad: :mad::mad:

any help please