s8 g950f u5 patch imei fail

Operation: Patch Certificate
Selected model: SM-G950F
Software version: 37.0

Waiting ADB device... OK
Reading phone info...
Model: SM-G950F
Android version: 9
PDA version: G950FXXU5DSFB
CSC version: G950FOXM5DSFB
Phone version: G950FXXU5ASF1
Product code: SM-G950FZKAXFE
CSC country code: SOUTHERN AFRICA
CSC sales code: XFE
Phone SN: RF8K523ETWZ
IMEI: 358762609324499
HW version: MP 0.700
RF cal date: 20180518
Chip name: EXYNOS8895
Modem board: SHANNON355
Security patch: 2019-07-01
Boot Warranty bit: 1
SIM State: ABSENT
Checking Super user right... true
Initialization zTool... OK
Running zTool, please wait... OK
Reading data from phone... OK
Searching server... OK
Checking server answer... OK
Executing... OK
Searching server... OK
Waiting for server answer... error (2)
Rebooting phone... OK

Done with Samsung Tool PRO v.37.0