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.
Thanks
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
CFE>
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.
I had already checked the Linksys OEM firmware thread and found no listing for the v8 firmware.
I have the DDWRT binary but cant figure out how to get the Broadcom CFE to load it. There must be some way to do it. It would be a shame to dump the router.
Joined: 08 May 2018 Posts: 14246 Location: Texas, USA
Posted: Mon Jun 22, 2020 20:06 Post subject:
ekraus wrote:
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!
I guess I posted all those links to information, especially the one on how to do a serial recovery for nothing? Please keep the discussion in the forum. Thank you. _________________ "Life is but a fleeting moment, a vapor that vanishes quickly; All is vanity"
Contribute To DD-WRT Pogo - A minimal level of ability is expected and needed... DD-WRT Releases 2023 (PolitePol)
DD-WRT Releases 2023 (RSS Everything)
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Linux User #377467 counter.li.org / linuxcounter.net
This is what I get after I issue
nvram erase and I am not quite sure if its getting erased, then a Ctrl c. Still trying to load DDWRT.
CFE> nvram erase
*** command status = 0
CFE> reboot
CFE version 1.0.37 for BCM947XX (32bit,SP,LE)
Build Date: Fri Nov 23 11:34:59 EST 2007 (tornado@dd-wrt.com)
Copyright (C) 2000,2001,2002,2003 Broadcom Corporation.
Initializing Arena
Initializing Devices.
Boot partition size = 262144(0x40000)
et0: Broadcom BCM47xx 10/100 Mbps Ethernet Controller 4.150.10.5
CPU type 0x29029: 240MHz
Total memory: 8192 KBytes
Total memory used by CFE: 0x80700000 - 0x807977D0 (620496)
Initialized Data: 0x8072E860 - 0x80730FB0 (10064)
BSS Area: 0x80730FB0 - 0x807317D0 (2080)
Local Heap: 0x807317D0 - 0x807957D0 (409600)
Stack Area: 0x807957D0 - 0x807977D0 (8192)
Text (code) segment: 0x80700000 - 0x8072E860 (190560)
Boot area (physical): 0x006BF000 - 0x006FF000
Relocation Factor: I:00000000 - D:00000000
Committing NVRAM...done
▒aiting for reset button release...done
CFE version 1.0.37 for BCM947XX (32bit,SP,LE)
Build Date: Fri Nov 23 11:34:59 EST 2007 (tornado@dd-wrt.com)
Copyright (C) 2000,2001,2002,2003 Broadcom Corporation.
Initializing Arena
Initializing Devices.
Boot partition size = 262144(0x40000)
et0: Broadcom BCM47xx 10/100 Mbps Ethernet Controller 4.150.10.5
CPU type 0x29029: 240MHz
Total memory: 8192 KBytes
Total memory used by CFE: 0x80700000 - 0x807977D0 (620496)
Initialized Data: 0x8072E860 - 0x80730FB0 (10064)
BSS Area: 0x80730FB0 - 0x807317D0 (2080)
Local Heap: 0x807317D0 - 0x807957D0 (409600)
Stack Area: 0x807957D0 - 0x807977D0 (8192)
Text (code) segment: 0x80700000 - 0x8072E860 (190560)
Boot area (physical): 0x006BF000 - 0x006FF000
Relocation Factor: I:00000000 - D:00000000
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
Invalid boot block on disk
Reading :: Failed.: Interrupted
CFE>
flash -noheader : flash1.trx
This does allow the upload but fails and gives the
Invalid boot block on disk error
CFE> nvram erase
*** command status = 0
CFE> flash -noheader : flash1.trx
Reading :: Done. 1768904 bytes read
Programming...done. 1768904 bytes written
*** command status = 0
CFE> go
Invalid boot block on disk
Reading :: Failed.: Timeout occured
Reading ::
By the way using Tftpd64 does not work, that is why I was having problems. I had an old version of tftp.exe that I downloaded in 2010 allowed the upgrade
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:
Also, worst case scenario, JTAG may be required, but that is extreme case if all else fails. You may wish to try the linked micro_generic.bin file with -noheader FIRST to see if it takes and comes up. _________________ "Life is but a fleeting moment, a vapor that vanishes quickly; All is vanity"
Contribute To DD-WRT Pogo - A minimal level of ability is expected and needed... DD-WRT Releases 2023 (PolitePol)
DD-WRT Releases 2023 (RSS Everything)
----------------------
Linux User #377467 counter.li.org / linuxcounter.net
OK so I was able to get dd-wrt.v24_micro_generic in and the router is up.
Using tftp.exe.
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?
