DVBS2 tunning - no signal technisat mantis

[banditnew]

i have bda all interface 0.0.8 version.

for dvb-s i have a signal but for dvbs-2 i have not signal.How can i get it.i choose 8psk but no signal.İf i use alt dvb i have signal and watching dvb-s2 channel but i don't want use altdvb i like dvbdream.
tested different version but i have same problem
Thanks for help.

Technisat skystar hd2 techinsat mantis