How do I set up Zgemma star s2

A bit of reading is required to get the most from your receiver.
A user guide can be found here:
http://linuxsat-support.com/showthread.php?t=96627
A flashing guide is here:
http://linuxsat-support.com/showthread.php?t=82453
Images for your receiver can be found here:
http://linuxsat-support.com/forumdisplay.php?f=1149
Any problems you encounter, please have a read here first, as most issues have been asked and answered before:
http://linuxsat-support.com/forumdisplay.php?f=1148
If your still unsure/stuck, post up your query and someone will be more than helpful.