Again Update New Version
Samsung Tool PRO 32.4
Download NEW & enjoy. I am Check Now S8 Plus G955U USA T-Mobile
Unlock Done,
Android version: 7.0 
Code:
Operation: Unlock
Selected model: SM-G955U
Selected port: COM272 SAMSUNG Mobile USB Serial Port
Software version: 32.4
Checking Login and Password... OK
Ballance: 10 crd.
You have 10 credit(s) left. This operation takes 10 credits.Continue? Yes
Waiting ADB device... OK
Reading phone info...
Model: SM-G955U
Android version: 7.0
PDA version: G955USQS2BRB1
CSC version: G955UOYN2BRB1
Phone version: G955USQS2BRB1
Product code: SM-G955UZKATMB
CSC country code: USA
CSC sales code: TMB
Phone SN: R28J31DXXXX
IMEI: 35598008029XXXX
HW version: REV1.0
RF cal date: 2017.03.16
Chip name: MSM8998
Modem board: MSM8998
Security patch: 2018-02-01
Boot Warranty bit: 0
Searching Samsung diag port... detected COM272
Reading phone info... OK
Reading data from phone... OK
Searching server... OK
Waiting for server answer... OK
Waiting ADB device... OK
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
Rebooting phone... OK
Unlock done
Done with Samsung Tool PRO v.32.4
Download Samsung Tool PRO 32.4