Samsung galaxy sm-g960u unlock failed and credit disappeared

[ 11/20/2018 5:07:55 PM ] You have 10 credit(s) left. This operation takes 10 credits.Continue? Yes
[ 11/20/2018 5:07:55 PM ] Waiting ADB device... OK
[ 11/20/2018 5:08:14 PM ] Reading phone info...
[ 11/20/2018 5:08:15 PM ] Model: SM-G960U
[ 11/20/2018 5:08:15 PM ] Android version: 8.0.0
[ 11/20/2018 5:08:15 PM ] PDA version: G960USQU3BRJ5
[ 11/20/2018 5:08:15 PM ] CSC version: G960UOYN3BRJ5
[ 11/20/2018 5:08:16 PM ] Phone version: G960USQU3BRJ5
[ 11/20/2018 5:08:16 PM ] Product code: SM-G960UZPATMB
[ 11/20/2018 5:08:16 PM ] CSC country code: USA
[ 11/20/2018 5:08:16 PM ] CSC sales code: TMB
[ 11/20/2018 5:08:17 PM ] Phone SN: R28K238BM0W
[ 11/20/2018 5:08:17 PM ] IMEI: 354825090243421
[ 11/20/2018 5:08:17 PM ] HW version: REV1.1
[ 11/20/2018 5:08:17 PM ] RF cal date: 2018.03.02
[ 11/20/2018 5:08:18 PM ] Chip name: SDM845
[ 11/20/2018 5:08:18 PM ] Modem board: SDM845
[ 11/20/2018 5:08:18 PM ] Security patch: 2018-10-01
[ 11/20/2018 5:08:18 PM ] Boot Warranty bit: 0
[ 11/20/2018 5:08:19 PM ] SIM State: ABSENT
[ 11/20/2018 5:08:22 PM ] Searching Samsung diag port... detected COM18
[ 11/20/2018 5:08:23 PM ] Reading phone info... OK
[ 11/20/2018 5:08:24 PM ] Reading data from phone... error (0), skip
[ 11/20/2018 5:08:24 PM ] Rebooting phone... OK
[ 11/20/2018 5:08:29 PM ] Waiting ADB device... OK
[ 11/20/2018 5:09:35 PM ] Rebooting phone... OK
[ 11/20/2018 5:09:40 PM ] Waiting ADB device... OK
[ 11/20/2018 5:10:23 PM ] Waiting for device to become ready... OK
[ 11/20/2018 5:10:24 PM ] Initialization zTool... OK
[ 11/20/2018 5:10:27 PM ] Running zTool, please wait...
[ 11/20/2018 5:10:27 PM ] Start... OK
[ 11/20/2018 5:10:31 PM ] Initialization... OK
[ 11/20/2018 5:10:32 PM ] Generate and check client proof... OK
[ 11/20/2018 5:10:32 PM ] Verify proof by client... OK
[ 11/20/2018 5:10:33 PM ] Reading data from phone... OK
[ 11/20/2018 5:10:36 PM ] Rebooting to upload... OK
[ 11/20/2018 5:10:39 PM ] Searching Ramdump interface... COM19 detected
[ 11/20/2018 5:12:13 PM ] Reading data from phone... OK
[ 11/20/2018 5:14:20 PM ] Calculating... OK
[ 11/20/2018 5:14:21 PM ] Searching server... OK
[ 11/20/2018 5:14:30 PM ] Waiting for server answer... OK
[ 11/20/2018 5:14:32 PM ] Waiting ADB device... timeout
[ 11/20/2018 5:16:02 PM ] Phone not found