Extracted firmware does not work!
 

I used the S1RES tool ver4.1 to try to theme the firmware of my nano clone but after i have modified the theme of the firmware, and exported it to my nano clone through S1RES, the firmware of my nano clone is still the same! I even tried to save the firmware and upgrade it through the given firmware upgrader but when i tried to upgrade, a notification pop ups saying "Error reading firmware". Please help me!

Thank You!

The firmware of my nano clone is as follows:
XID_1312_10
2007-08-08
9.1.52
2005-01-09