Bricked your Linksys WRT54G ?
I did, and it sucked. I found little documentation on how to fix it that worked. My router is a wrt54g v2.0
Tools
Two alligator clips with a wire in between them. Dental tool
>~~~~~~~~<
Note: I would only follow this procedure if your router does not respond to pings
Procedure
First read and understand this:
http://voidmain.is-a-geek.net/redhat/wrt54g_revival.html
I used a pointed dental tool, hooked an alligator clip to it and connected the other end of the alligator clip to the antenna or “ground”. Before powering on the device I held the dental pick on pin 15 of the bios chip, then plugged in the power. I am pretty sure it was pin 15 but if it doesn’t work you can try pin 16. Sorry about this but the pins are like 2 hair widths apart and I had a hard time seeing. Wait for your pings. Once it starts responding to pings remove your tools.
Did it work?
I hope so, here is a link to tftp software. Download the Linksys firmware and tftp the firmware into the router. Give it some time after the upload finishes successfully, so wait, wait, wait then reboot.
Disclamer:
I am not responsible if you destroy your router or electrocute yourself.
Word links for the search engines
Crashed linksys wrt54g, wrt54g not responding. Blinking green light on wrt54g, bad firmware. Botched firmware wrt54g. Blinking green led wrt54g. Corrupted firmware wrt54g. Failed upgrade. Wrt54g dead.