Unlock S5 At&t Sm-g870a

[servergsm]

que tal amigo les traigo un pequeño aporte para la comunidad, en esta ocacion es una liberacion de un Galaxy S5 Activa SM-G870A,
Solo conectan el equipo activan modo depuracion, teclean *#0808# y lo ponen en "DM+Modem+ADB" y le dan en Liberar y Sale en menos de un minuto
no necesitan ser root, Espero les ayude en algo

Platform: Samsung Android
Selected port: COM50
Selected model: SM-G870A
Reading info...
Mode: Normal
Firmware compiled time: 03:00:00
Firmware released date: Jul 25 2014
Firmware released time: 14:33:07
SW Version: MPSS.DI.2.0.1.c2-00055-M8974AAAAANRZM-1
Please, press "OK" button on the phone to allow USB debugging..
Detected phone model: SM-G870A
PDA version: G870AUCU1ANG3
CSC version: G870AATT1ANG3
SW version: G870AUCU1ANG3
Phone IMEI: 352622060915472
Phone SN: R38F518LZQM
Android version: 4.4.2 (KOT49H)
Unlocking phone...
Phone will restart now. Please don't disconnect cable!
Phone is successfully unlocked
To finish the operation, please restart the phone via phone's menu (don't disconnect the battery!)