I think you are asking too much from a forum on your first go.
The reason there has been no constructive reply to your question is probabaly
1) Few people have the same receiver as you
2) Fewer people with the same receiver as you have looked at this forum
3) Very few people with the same receiver as you have tried the same as what you are asking
Try asking your installer first, and let us know the answer.
I got the receiver from one known person who is in this field. And he gave discounted rate and all. He is poor in computers and internet. He has tried firmware upgradation through some people but in vain and in his shop I saw some receivers are lieing dead. So I cant try with him. He told me that if I do any mistake in upgrading then he cant provide the warranty for the receiver.
I want to do it for myself and I want to take a backup before doing upgradation. that's why I asked this.
Anyway I will try to upgrade it. Yesterday I found one website www.satsw.com in that I could get the latest firmware for Starsat SR-X650CI. But I am not sure whether it is exact one. That's why at first I will try to take a back-up of existing firmware using windows Hyper Terminal. If I succeed then I will let you know.
Sky HD, TM6800HD, Manhattan Plaza ST550 and TM1500 CI+. 1.0m dish and 36v motor, Panasonic DVD HDD recorder and Panasonic video/DVD recorder. Sony G800 HD TV stand/surround system + Sony KDL40W2000. Infinity USB, Elvis, CAS1, CAS2.