G935a read code fail

[lucky999]

UNLOCK INSTRUCTIONS:
Unlocking with original MSL code:
1. Phone must be powered on.
2. Run dialer and type *#0*# (service mode will apear).
3. Connect the phone to UART cable, choose correct COM port in port settings.
4. Press 'Unlock' button.
5. Paste MSL code in new opened window and press 'OK'.

Reading codes using sever:
1. Power on the phone.
2. Tap 7 times on 'Build number' in 'Settings'-'About phone' to enable 'Developer options',
go to 'Settings'-'Developer options' and enable 'USB debugging'.
3. Connect the phone to PC with USB cable, install drivers if needed.
4. Select device in ADB settings.
5. Press 'Read Codes via server' button, write your login and password in window if it will apear.
(Login and password will be saved as default after first input and can be changed in settings.)

Operation: Read Codes via Server
Selected model: SM-G935A
Selected port: COM375 SAMSUNG Mobile USB Serial Port
Software version: 28.6

Checking Login and Password... OK
Balance: 45 crd.
Waiting ADB device... OK
Reading phone info...
Model: SAMSUNG-SM-G935A
Android version: 7.0
Product code: SM2G935AZDAATT
Phone version: G935AUCS4BQE1
PDA version: G935AUCS4BQE1
CSC version: G935AATT4BQE1
CSC country code: USA
CSC sales code: ATT
HW version: REV0.7
Phone SN: RF8H82A92HV
Chip name: MSM8996
Modem board: MSM8996
Security patch: 2017-05-01
RF cal date: 2016.08.22
IMEI:
Initialization zTool... error (0)

Done with Samsung Tool PRO v.28.6

[blang]

Originally Posted by lucky999

UNLOCK INSTRUCTIONS:
Unlocking with original MSL code:
1. Phone must be powered on.
2. Run dialer and type *#0*# (service mode will apear).
3. Connect the phone to UART cable, choose correct COM port in port settings.
4. Press 'Unlock' button.
5. Paste MSL code in new opened window and press 'OK'.

Reading codes using sever:
1. Power on the phone.
2. Tap 7 times on 'Build number' in 'Settings'-'About phone' to enable 'Developer options',
go to 'Settings'-'Developer options' and enable 'USB debugging'.
3. Connect the phone to PC with USB cable, install drivers if needed.
4. Select device in ADB settings.
5. Press 'Read Codes via server' button, write your login and password in window if it will apear.
(Login and password will be saved as default after first input and can be changed in settings.)

Operation: Read Codes via Server
Selected model: SM-G935A
Selected port: COM375 SAMSUNG Mobile USB Serial Port
Software version: 28.6

Checking Login and Password... OK
Balance: 45 crd.
Waiting ADB device... OK
Reading phone info...
Model: SAMSUNG-SM-G935A
Android version: 7.0
Product code: SM2G935AZDAATT
Phone version: G935AUCS4BQE1
PDA version: G935AUCS4BQE1
CSC version: G935AATT4BQE1
CSC country code: USA
CSC sales code: ATT
HW version: REV0.7
Phone SN: RF8H82A92HV
Chip name: MSM8996
Modem board: MSM8996
Security patch: 2017-05-01
RF cal date: 2016.08.22
IMEI:
Initialization zTool... error (0)

Done with Samsung Tool PRO v.28.6

just repeat again.
try reset phone.

[FIRMWAREBEST]

Same here error 3

Checking Login and Password... OK
Ballance: 50 crd.
Waiting ADB device...
Please, allow USB debugging on phone... OK
Reading phone info...
Model: SAMSUNG-SM-G935A
Android version: 7.0
Product code: SM2G935AZKAATT
Phone version: G935AUCS4BQC2
PDA version: G935AUCS4BQC2
CSC version: G935AATT4BQC2
CSC country code: USA
CSC sales code: ATT
HW version: REV0.7
Phone SN: RF8J422SBWE
Chip name: MSM8996
Modem board: MSM8996
Security patch: 2017-03-01
RF cal date: 2017.04.19
IMEI:
Rebooting phone... OK
Waiting ADB device... OK
Rebooting phone... OK
Waiting ADB device... 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... COM36 detected
Reading data from phone... error (3)

Done with Samsung Tool PRO v.28.8.1

[blang]

Originally Posted by FIRMWAREBEST

Same here error 3

Checking Login and Password... OK
Ballance: 50 crd.
Waiting ADB device...
Please, allow USB debugging on phone... OK
Reading phone info...
Model: SAMSUNG-SM-G935A
Android version: 7.0
Product code: SM2G935AZKAATT
Phone version: G935AUCS4BQC2
PDA version: G935AUCS4BQC2
CSC version: G935AATT4BQC2
CSC country code: USA
CSC sales code: ATT
HW version: REV0.7
Phone SN: RF8J422SBWE
Chip name: MSM8996
Modem board: MSM8996
Security patch: 2017-03-01
RF cal date: 2017.04.19
IMEI:
Rebooting phone... OK
Waiting ADB device... OK
Rebooting phone... OK
Waiting ADB device... 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... COM36 detected
Reading data from phone... error (3)

Done with Samsung Tool PRO v.28.8.1

try use last version of samsung tool. 28.9 and post result.