A week or two ago I decided to update the stock firmware with dd-wrt firmware on my Linksys WRT54G ver 5.1. Because some issues with PPPoE connection I try to downgrade to a earlier version of dd-wrt. This think transform my router into an expensive brick : Power led blinking and 4 lan and 1 lan leds are ON I try shorting the 15 and 16 pins on nvram, starting the device with 16 pin grounded and nothing help me. If I starting up the device with 16 pin grounded, I receive ping response but power led still blinking. I've try to upload a new bin firmware with tftp tool from Linksys, it worked well but device wont go into the reset procedure after receiving the new firmware. Any ideas? or my last chance is JTAG?