Rescue a WRT54GL with TFTP

If something didn't work when flashing the WRT54GL like it was supposed to, you've still got an opportunity to rescue your router from becoming an expensive brick.
Try to flash him with tftp.
You can also use this method for doing a "normal" flash.
You need a computer thats connected to the router and that has tftp installed.
Type the following commands to the shell:
tftp IP of your WRT54GL binary
rexmt 1
timeout 180
trace
put Name of the file you want to flash

Plug off the power supply of the WRT54GL and plug it in again. Now the new file is flashed onto the router.