Efs exynos kill old phones

Using Version...1.0.0.0066
Selected Port SAMSUNG Mobile USB Modem #4 COM9
Selected Model GT-I5500
Selected Task SAMSUNG ExynosEFS RESET

Searching phone...
Device Found..
MODEL=SM-G920T;UN=02157DF2CAC69B19;CAPA=64;VENDOR=SAMSUNG;F WVER=0202;PRODUCT=KLUCG8G1BD-E0B1;PROV=PASS;
Init ok..
Device := SM-G920T:USA:TMO:2:FA50_G920TUVU6ARA1
Samsung Exynos EFS Reset Success..

!!! Success !!!!
Restart Phone if not auto...
Total Time Take...00:00:20
GCKEY STUCK PHONE S6 team supposed to fix that problem before operation was good