SM-G950U unlock error

SM-G950U unlock error

Checking Login and Password... OK
Ballance: 16 crd.
You have 16 credit(s) left. This operation takes 10 credits.Continue? Yes
Waiting ADB device... OK
Reading phone info...
Model: SM-G950U
Android version: 7.0
PDA version: G950USQU2BQK5
CSC version: G950UOYN2BQK5
Phone version: G950USQU2BQK5
Product code: SM-G950UZVAXAA
CSC country code: USA
CSC sales code: XAA
Phone SN: R28J82S4HGT
IMEI: 357753082860787
HW version: REV1.0
RF cal date: 2017.08.21
Chip name: MSM8998
Modem board: MSM8998
Security patch: 2017-11-01
Boot Warranty bit: 0
This phone is XAA and unlock is not supported by this method

Done with Samsung Tool PRO v.32.7


what is the solution