G950U At&t MSL Unlock Failed
 

Operation: Unlock
Selected model: SM-A520F
Software version: 28.2

Searching Samsung modem... detected COM145
Reading phone info... Ok
Model: SM-G950U
AP version: G950USQU1AQC9
CSC version: G950UOYN1AQC9
CP version: G950USQU1AQC9
Product code: ATT
Phone SN: R38J402D5ZF
Unique number: 9887F73034484E3549
Reading IMEI... Ok
IMEI: samusprime
Reading SN... error (1)
Done with Samsung Tool PRO v.28.2

I tried with the last version...

Operation: Info
Selected model: SM-G950U
Selected port: COM146 SAMSUNG Mobile USB Serial Port
Software version: 29.1

Searching Samsung modem... detected COM145
Reading phone info... OK
Model: SM-G950U
AP version: G950USQU1AQC9
CSC version: G950UOYN1AQC9
CP version: G950USQU1AQC9
Product code: ATT
Phone SN: R38J402D5ZF
Unique number: 9887F73034484E3549
Reading IMEI... OK
IMEI: samusprime
Done with Samsung Tool PRO v.29.1

Read info its ok, but when I tried unlock z3x software won't read info to ask for msl.

https://scontent.feoh3-1.fna.fbcdn.n...a7&oe=5A3335CC

Any solution?

Uppppppp!!!!!!!!!!!!!!!!

No help?...................

try to read codes by server

:confused::confused::confused::confused:Same here :(

U can't Do it By Z3X and USB you Need URT cable and its not available the second solution Write Msl By At Command And Its Not Easy :)
Regards