TMB G950U Fail, new update

You have 20 credit(s) left. This operation takes 10 credits.Continue? Yes
Waiting ADB device... OK
Reading phone info...
Model: SM-G950U
Android version: 8.0.0
Product code: SM-G950UZKATMB
Phone version: G950USQU2CRB9
PDA version: G950USQU2CRB9
CSC version: G950UOYN2CRB9
CSC country code: USA
CSC sales code: TMB
HW version: REV1.0
Phone SN: R28J332YZQE
Chip name: MSM8998
Modem board: MSM8998
Security patch: 2018-02-01
RF cal date: 2017.03.27
IMEI: 355987
Waiting for device to become ready... OK
Initialization zTool... error (0.8)
Done with Samsung Tool PRO v.31.0


so much updates and ztool will never get fixed to work 100%