N950U android 8.0 Read code by server fail

[ 3/14/2018 1:02:00 PM ] Operation: Read Codes via Server
[ 3/14/2018 1:02:00 PM ] Selected model: SM-N950U
[ 3/14/2018 1:02:00 PM ] Software version: 30.9
[ 3/14/2018 1:02:00 PM ]
[ 3/14/2018 1:02:00 PM ] Waiting ADB device... OK
[ 3/14/2018 1:02:00 PM ] Reading phone info...
[ 3/14/2018 1:02:00 PM ] Model: SM-N950U
[ 3/14/2018 1:02:00 PM ] Android version: 8.0.0
[ 3/14/2018 1:02:00 PM ] Product code: SM2N950UZVAATT
[ 3/14/2018 1:02:00 PM ] Phone version: N950USQU3CRBB
[ 3/14/2018 1:02:00 PM ] PDA version: N950USQU3CRBB
[ 3/14/2018 1:02:00 PM ] CSC version: N950UOYN3CRBB
[ 3/14/2018 1:02:00 PM ] CSC country code: USA
[ 3/14/2018 1:02:00 PM ] CSC sales code: ATT
[ 3/14/2018 1:02:00 PM ] HW version: REV1.0
[ 3/14/2018 1:02:00 PM ] Phone SN: R38JC01X2RA
[ 3/14/2018 1:02:00 PM ] Chip name: MSM8998
[ 3/14/2018 1:02:00 PM ] Modem board: MSM8998
[ 3/14/2018 1:02:00 PM ] Security patch: 2018-03-01
[ 3/14/2018 1:02:00 PM ] RF cal date: 2017.12.05
[ 3/14/2018 1:02:00 PM ] IMEI: xxxxxxxxxxxxxxxxxx
[ 3/14/2018 1:02:00 PM ] Waiting for device to become ready... OK
[ 3/14/2018 1:02:00 PM ] Initialization zTool... OK
[ 3/14/2018 1:03:00 PM ] Running zTool, please wait...
[ 3/14/2018 1:03:00 PM ] Start... OK
[ 3/14/2018 1:03:00 PM ] Initialization... OK
[ 3/14/2018 1:03:00 PM ] Generate and check client proof... OK
[ 3/14/2018 1:03:00 PM ] Verify proof by client... OK
[ 3/14/2018 1:03:00 PM ] Reading data from phone... error ()





Luckily, this phone still in security Rev3 so flash a lower Android 7.1.1 still possible.

My method is flash combination and then read code then flash stock and unlock


Hope Z3X team can fix this problem soon