Need help on Remote system upgrade of CYCLONE III..urgent

Hi all,

I have a cyclone III device and a serial configuration device(EPCS flash).

I have a factory image (SOF1) programmed at the EPCS flash address 0x00000000.

I have an application image(SOF2) programmed at the EPCS flash address 0x000A0000.

Whenever i boot up, the factory image (SOF1) loads in the FPGA. The software application of the SOF1 triggers reconfiguration at the EPCS flash address 0x000A0000 to configure the FPGA with SOF2.

Assume that SOF2 is now configured and its corresponding software application is running.

Now at this point i need to reset back to factory image without power cycle.

How is this possible?

which registers should i access to hit a reset to the factory image?

As per the altera document once SOF2 is loaded we wont be in the factory mode and hence i guess i cannot trigger reconfiguration for the SOF1 at 0x00000000. If this is the case how can i reset back to SOF1 without powercycle.

Please help.

Thanks a lot in advance