SM-G930a read codes error [Answered]

[yadiracontreras]

i got the v34.8 version

Operation: Read Codes via Server
Selected model: SM-G930A
Selected port: COM232 USB Serial Port
Software version: 34.8

Checking Login and Password OK
Ballance 18 crd.
You have %s credit(s) left. This operation takes %s credits<RETURN>Continue? Yes
Waiting ADB device OK
Reading phone info
Model SAMSUNG-SM-G930A
Android version 7.0
PDA version G930AUCS4BRC1
CSC version G930AATT4BRC1
Phone version G930AUCS4BRC1
Product code SM-G930AZKAATT
CSC country code USA
CSC sales code ATT
Phone SN R38J10M9VTJ
IMEI: 357425077830923
HW version REV0.6
RF cal date 2017.01.24
Chip name MSM8996
Modem board MSM8996
Security patch: 2018-03-01
Boot Warranty bit: 0
SIM State: NETWORK_LOCKED
Rebooting phone OK
Waiting ADB device OK
Waiting for device to become ready OK
Initialization zTool OK
Running zTool, please wait OK
Reading data from phone OK
Searching Ramdump interface COM178 detected
Reading data from phone OK
Calculating OK
Searching server OK
Waiting for server answer error (1)
Update your firmware to latest

[gsm_service4u]

for u4 there is a way to unlock these without credits

just flash 2017 u4 7.0 fw to use that method

otherwise update to u8 8.0 and read by credits