I just want to verify the procedure for updating BEFSR41(v4.3)router. The internal firmware update button insists on a .bin file. Linksys offers an ISO file. Do I burn this to a cd/DVD, boot it on an offline Linux box with the router attached?
8040-2214020_BEFSR41_V4.3.0.001_US001,0.iso


Yes I tried to get on both L-sis and T's hdware forums but the paranoia is so thick I simply refused to strip out all my browser security to comply. I searched this forum but the pertinent subject line found has a broken solution link. Linksys may have changed policy since then anyway. Thanks in advance for any tips.

The download support page indicates no firmware/driver available. The ISO file you downloaded is the windows setup CD.

Have not found much on version history and so I would be reluctant to just try firmware downloaded from another site.

1 members found this post helpful.

I get the feeling that the iso is a bootable media already.

If not then...


Boot to a live media is easy.

Review the errata for the update and see if it includes what you may need or desire.

Thanks for the info, appreciate the help. I guess we can assume that Linksys has ceased updating firmware for BEFSR41. Their chat line seems to be constantly off-duty and I don't really qualify for their support services. I used this decrepit unit until a few months ago with reliable service at a minimal bit rate of around 3.5MBps. I bumped my broadband to 20MBps and I also upgraded my router as well to an Asus RTn16. I've been playing with DDWRT and bought an old WRT54G v1.3 as a lab rat to experiment with the re-flashing process and it worked beautifully. So I now have a spare tire for both future "emergencies", or as a loaner or to fill-in during the hour or two while I re-flash my Asus RTn16 to DDWRT.

Jefro - affirmative on pop-kult nausea

I can confirm v1.04.09 firmware update for the befsr41v1 was in fact a bin file, I still seem to have an old directory listing that shows files I downloaded back in 2006. IIRC you had to get firmware for the particular hardware version shown on the tag on the unit, v1 was early in the line.

Thanks, the old beastie is hence forth retired.