help required about me rebadged stb

balouch

to all memebers,
i have a receiver named as Echobox DSR9800plus.
i open it to check it main board. on the main main it is written
STI 5512
2001.12.05 Rev.C
and on the flash chip it written
Intel
TE28F160
B3TA110
A9450335A
1998
On the Board there was another chip on which it is written
Hynix Korea
Hy57V641620HG
0232A T-H

On the System Information it say somthing like
version S9000F34028M 5.20


now can any one please tell me how to update software and with which receiver software it will work fine
and my receiver look like metaware FTA model

looking forward for you help