Posted: Sun Jun 21, 2020 20:43 Post subject: wrt54g V8 serial port flash
I have a wrt54g V8 with a serial port on the board.
I have accessed the router via the serial port.
I am looking for help to reflash it with the DDWRT firmware.
It was working with DDWRT and I tried to update the firmware and it never completed. I am looking for help.
First of all thanks.
I have tried every way that has been documented in your post.
This is what i encounter.
I am attached via serial to the router.
upon boot this is what i get.
Device eth0: hwaddr 00-1C-10-97-ED-3F, ipaddr 192.168.1.1, mask 255.255.255.0
gateway not set, nameserver not set
Boot program checksum is invalid
Reading :: Failed.: Timeout occured
Reading :: Failed.: Interrupted
TFTP does not work.
I can ping the router.
It seems that if I can get the firmware into it I can bring it back to life.
The other thing is that in order to recover you need the original Linksys firmware that is not available.
Joined: 08 May 2018 Posts: 7178 Location: Texas, USA
Posted: Mon Jun 22, 2020 20:06 Post subject:
I appreciate the firmware but I am still lost as to how to get it in the router. I haven't seen a line of code or done anything from a command line since I retired in 2002 so forgive me for being ignorant. + navigating the internet is a pain in the ass. I have 2 of the 54G's one works fine
and this one took a shit!
There is a section in the Serial recovery wiki that discusses extra steps that may be required to do serial recovery, but without the output of 'devinfo show' or 'show devices', I am not sure what to suggest specifically.
Also, I just remembered this:
8.0 Broadcom BCM5354 @ 240 MHz 8 MB 2 MB CDFF/CDFG
Some units come with 16 MB of RAM. VxWorks killer works. Antennas cannot be removed.
If you used the VxWorks killer in the past, then stock firmware may not flash. You may have to follow the initial flash procedure in the wiki to some extent:
OK so I was able to get dd-wrt.v24_micro_generic in and the router is up.
But I cant get either the linksys firmware or the last build of DDWRT for this router in.
I am using the the firmware upgrade, firmware management page.
Is the micro_generic a totally functional load?