sm-g900t (carrier t-mobile, asking for unlock code when local simcard inserted-no device unlock app)
need 3 credits to unlock
install latest version of samkey
install samsung usb driver download from samkey.org
open samkey
insert username and password
press log in
uncheck automatic unlock
press read-info
press read codes
wait until done
need 3 credits to unlock
install latest version of samkey
install samsung usb driver download from samkey.org
open samkey
insert username and password
press log in
uncheck automatic unlock
press read-info
press read codes
wait until done