sm-n950 cant read codes

Waiting ADB device... OK
Reading phone info...
Model: SM-N950U
Android version: 8.0.0
PDA version: N950USQS5CRF6
CSC version: N950UOYN5CRF6
Phone version: N950USQS5CRF6
Product code: SM2N950UZVAATT
CSC country code: USA
CSC sales code: ATT
Phone SN: R38JC00DZJP
IMEI: 351823092504513
HW version: REV1.0
RF cal date: 2017.12.04
Chip name: MSM8998
Modem board: MSM8998
Security patch: 2018-07-01
Boot Warranty bit: 0
SIM State: NETWORK_LOCKED
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
Searching Ramdump interface... COM13 detected
Reading data from phone... OK
Calculating... error (0)
Done with Samsung Tool PRO v.34.0