g950u error (0)

Checking Login and Password... OK
Ballance: 45 crd.
You have 45 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
PDA version: G950USQS5CRH1
CSC version: G950UOYN5CRH1
Phone version: G950USQS5CRH1
Product code: SM-G950UZSATMB
CSC country code: USA
CSC sales code: TMB
Phone SN: R28J51P37MT
IMEI: 357754081
HW version: REV1.0
RF cal date: 2017.05.16
Chip name: MSM8998
Modem board: MSM8998
Security patch: 2018-08-01
Boot Warranty bit: 0
Searching Samsung diag port... detected COM1640
Reading phone info... OK
Reading data from phone... error (0), skip
Rebooting phone... OK
Waiting ADB device... OK
Rebooting phone... OK
Waiting ADB device... OK
Waiting for device to become ready... OK
Initialization zTool... OK
Running zTool, please wait...
Start... OK
Initialization... OK
Generate and check client proof... OK
Verify proof by client... OK
Reading data from phone... OK
Rebooting to upload... OK
Searching Ramdump interface... COM5 detected
Reading data from phone... OK
Calculating... error (0)

Done with Samsung Tool PRO v.33.8