I upload firmware from 1.9.7.5 to 1.9.7.2 via web interface, the router does not respond for a long time. I refesh the web and nothing happen. After that I still access internet in a few minutes then it come down. The power led blink all the time. The ethenet connection also down. I can not access the router anyway.

How can I do to rescue this router. Please HELP me!!!

Thanks a lot!!!