New project: Non-JTAG CFE replacement on the WRT54G v5

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BrainSlayer
Site Admin


Joined: 06 Jun 2006
Posts: 6109
Location: Dresden, Germany

PostPosted: Thu Oct 05, 2006 0:42    Post subject: Re: GS manual reversion firmware finally available Reply with quote
db90h wrote:
I finally got around to tracking down why OpenWrt would brick WRT54GS v5.x units. It's been fixed now in OpenWrt and a reversion firmware is available (though consider this ALPHA):

For information on the OpenWrt incompatibility see: http://forum.openwrt.org/viewtopic.php?id=7597

For the GS reversion firmware download: http://www.bitsum.com/files/vxrevert_manual_gs_v06.zip

To use: TFTP the TRX, or flash the BIN with the web UI. Telnet in after reboot and follow instructions.

Note that I've also added support to bsptool for setting the THIRD mac address in the BOOTP block.


i always thought, this is a dd-wrt forum

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tutte
DD-WRT Novice


Joined: 05 Oct 2006
Posts: 1

PostPosted: Thu Oct 05, 2006 18:19    Post subject: Reply with quote
Quote:
I finally got around to tracking down why OpenWrt would brick WRT54GS v5.x units. It's been fixed now in OpenWrt and a reversion firmware is available (though consider this ALPHA):

For information on the OpenWrt incompatibility see: http://forum.openwrt.org/viewtopic.php?id=7597

For the GS reversion firmware download: http://www.bitsum.com/files/vxrevert_manual_gs_v06.zip

To use: TFTP the TRX, or flash the BIN with the web UI. Telnet in after reboot and follow instructions.

Note that I've also added support to bsptool for setting the THIRD mac address in the BOOTP block.


http://www.bitsum.com/files/vxrevert_manual_gs_v06.zip

Link doesn't work for me Rolling Eyes

Thanks for you work db90h and BrainSlayer ! Wink
AycheKay
DD-WRT User


Joined: 18 Sep 2006
Posts: 100

PostPosted: Fri Oct 06, 2006 1:53    Post subject: Re: GS manual reversion firmware finally available Reply with quote
BrainSlayer wrote:
db90h wrote:
I finally got around to tracking down why OpenWrt would brick WRT54GS v5.x units. It's been fixed now in OpenWrt and a reversion firmware is available (though consider this ALPHA):

For information on the OpenWrt incompatibility see: http://forum.openwrt.org/viewtopic.php?id=7597

For the GS reversion firmware download: http://www.bitsum.com/files/vxrevert_manual_gs_v06.zip

To use: TFTP the TRX, or flash the BIN with the web UI. Telnet in after reboot and follow instructions.

Note that I've also added support to bsptool for setting the THIRD mac address in the BOOTP block.


i always thought, this is a dd-wrt forum


You're such a nice guy. Most forum moderators would practice their karate skills on a post (and poster) like this.
wilson88
DD-WRT Novice


Joined: 03 Oct 2006
Posts: 2

PostPosted: Wed Oct 11, 2006 6:51    Post subject: update DD-WRT Reply with quote
I m using DD-WRT micro for my v5 router.

Now I need to update to the latest micro firmware

which 1 should I get.

I should get the micro generic or the micro WRT54G?.

I downloaded micro generic and it bricked my router.

what it means reset the router before I flash ?
job
DD-WRT Novice


Joined: 25 Jun 2006
Posts: 29
Location: Netherlands

PostPosted: Sun Oct 15, 2006 16:12    Post subject: Reply with quote
You should use the generic.

Did it really brick your router?? (the 4 lan leds are fixed?).
Some dd-wrt versions let the router reboot over and over. The latest version works great.
http://www.dd-wrt.com/dd-wrtv2/down.php?path=downloads%2Fdd-wrt.v23%20SP2%2Fmicro%2F&download=dd-wrt.v23_micro_generic.bin

resetting before flashing is not needed.


Last edited by job on Sun Nov 05, 2006 16:23; edited 1 time in total
onesolo
DD-WRT Novice


Joined: 27 Oct 2006
Posts: 9

PostPosted: Fri Oct 27, 2006 11:32    Post subject: Reply with quote
Hello,

I have a WRT54GS v5 already with the dd-wrt v23 SP2. I have a question.
In the future, can I upgrade to the micro specific version rom of my router or should I just stick to the micro generic version??
unqye
DD-WRT Novice


Joined: 22 Sep 2006
Posts: 6

PostPosted: Fri Oct 27, 2006 17:46    Post subject: Reply with quote
...still waiting for http://www.bitsum.com/files/vxrevert_manual_gs_v06.zip

thanks for your job

take care

Best Regards,
unqye
kocoman
DD-WRT User


Joined: 27 Oct 2006
Posts: 56

PostPosted: Thu Nov 09, 2006 20:29    Post subject: Reply with quote
Can anyone tell me how to use the "vxworks boot" prompt to dump the image (over serial console), and capture it, ie: with "d 0,5000000" (for 8mb 0x800000) ram until it gets an exception error. then again with the boot image decompressed in memory (with " l " command). then using some hex to bin convert the file, then use IDA to disassemble it? my board is ARM940T, what options do I use in IDA? anyone have some experience? I don't know if I can jtag the unit with just parallel port and resistors. Thanks

Why am I getting
Mistake! There was an attempt of an automatic insert of the message in a forum. Your message is sent to hell. Try still times who knows - can it will turn out? Still probably, that you too long wrote the message - then pass to page back, copy the text, update page, insert the copied text and press button "Send".
kocoman
DD-WRT User


Joined: 27 Oct 2006
Posts: 56

PostPosted: Wed Nov 15, 2006 11:32    Post subject: Reply with quote
OT: Can someone help me reassemble this file? (I want a COFF-Arm-Little ARM940T) and to load it in IDA, is it possible to recreate the text, bss, sections or get the symbol table? Its a vxworks image. I manage to find "debug reconfigure-rom and debug start-test-server, but I have no idea what start-test-server does expect open port 9997)
Please tell me what other boards I can post for help.. Thanks

http://www.mytempdir.com/1061391
kdiamond
DD-WRT Novice


Joined: 08 Dec 2006
Posts: 2

PostPosted: Fri Dec 08, 2006 19:21    Post subject: Reply with quote
http://www.bitsum.com/files/vxrevert_manual_gs_v06.zip

as you already know link to this file is broken.

If anyone has this file stored please PM me.

Thank you !!!

Br,
kd
takumi86
DD-WRT Novice


Joined: 02 Feb 2007
Posts: 5

PostPosted: Fri Feb 02, 2007 16:10    Post subject: Reply with quote
hi, looks like i bricked my v5 router (power led flashing and all others lit) trying to revert it to the original linksys firmware from dd-wrt micro. i followed the guide here - http://www.bitsum.com/openwiking/owbase/ow.asp?WRT54G5%5FCFE#h18

can someone tell me where i went wrong? i definitely ran embed.sh, here is as far as i went -
root@OpenWrt:/# cd /etc/bsptools/
root@OpenWrt:/etc/bsptools# ./embed.sh XX-XX-XX-XX-XX-XX XX-XX-XX-XX-XX-XZ CDFB1
F639743


bsptool v0.2 - (c)2006 Jeremy Collake - http://www.bitsum.com
MAC1 supplied: XX-XX-XX-XX-XX-XX
MAC2 supplied: XX-XX-XX-XX-XX-XZ
Serial supplied: CDFB1F639743

Viewing BOOTP block ...

BOOTP block
codep : 0x57475635
checksum : 0x55d8 (calculated: 0x55cf)
bootcode ver : 0x1000102
model : WRT54G
vendor : LINKSYS
country : US
serial # : CDFB0F2A0131
hardware ver : 1.0
pciid : 0xffff
mac1 : XX-XX-XX-XX-XX-XX
mac2 : XX-XX-XX-XX-XX-XZ
boot string : tffs:(0,0)host:/fl/vxWorks.bin h=192.168.1.100 e=192.168.1.1:fff
fff00 u=target tn=targetname f=0x8

Rewriting BOOTP block ...

Viewing modified BOOTP block ...

BOOTP block
codep : 0x57475635
checksum : 0x5682 (calculated: 0x5682)
bootcode ver : 0x1000102
model : WRT54G
vendor : LINKSYS
country : US
serial # : CDFB1F639743
hardware ver : 1.0
pciid : 0xffff
mac1 : XX-XX-XX-XX-XX-XX
mac2 : XX-XX-XX-XX-XX-XZ
boot string : tffs:(0,0)host:/fl/vxWorks.bin h=192.168.1.100 e=192.168.1.1:fff
fff00 u=target tn=targetname f=0x8

BOOTP changes done.
root@OpenWrt:/etc/bsptools# ./flash.sh
WARNING: flashing VxWorks BSP.. do not abort this process! Wait!
Unlocking nvram ...
Erasing nvram ...
Bad trx header
If this is a firmware in bin format, like some of the
original firmware files are, use following command to convert to trx:
dd if=firmware.bin of=firmware.trx bs=32 skip=1
TRX check failed!
Unlocking mtd0 ...
Writing from /etc/bsptools/part1.bin to mtd0 ... [w]
Bad trx header
If this is a firmware in bin format, like some of the
original firmware files are, use following command to convert to trx:
dd if=firmware.bin of=firmware.trx bs=32 skip=1
TRX check failed!
Unlocking mtd1 ...
Writing from /tmp/part2.bin to mtd1 ... [w]

i've tried the pin shorting method to get it back with no luck, looks like i'll ebay a jtag cable .

cheers.
Jayfore
DD-WRT Novice


Joined: 05 Oct 2008
Posts: 5

PostPosted: Mon Oct 06, 2008 3:33    Post subject: Reply with quote
kdiamond wrote:
http://www.bitsum.com/files/vxrevert_manual_gs_v06.zip

as you already know link to this file is broken.

If anyone has this file stored please PM me.

Does anyone have a source for this package? I'm so screwed!!
mkk
DD-WRT Novice


Joined: 11 Nov 2008
Posts: 9
Location: Hong Kong PRC

PostPosted: Tue Nov 11, 2008 21:52    Post subject: changing MAC address after flashed to ddwrt micro Reply with quote
i have not catch on the note of the MAC changing,
and find the MAC issue after playing v23 sp2 and v24 sp1 a few day.

how can i changed my MAC address now , is ther any other way to change it other than revert back to the original Vxworks Linksys firmware than flash ddwrt again ?

Also i tested v24 sp1 , it lockup randomly from 10 to 15 min , both webGUI and telnet locked up , even ping the router can't get reply. i try to stop some service but now work , fnaly gav up and go back to v23 sp2. i'm wonder will openwrt get better ? can any oe post the donwload link for the micro openwrt image ?

for ddwrt i got a VLAN problem , my ISP using VDSL model via PPPoE, and can login 2 time , ie have 2 IP.

i connect two wrt54g to the modem via a switch hub , now i don't wanna to have 3 box here (2 routerbox , 1 hub box) , so i assigned two lanport to the WAN port valan (see picture)


it don't work , when if all 3 port in the same vlan1,only one the v5 can get dail up and obtain IP . than i try to creat vlan2 it done ! both router can obain own IP now . do anyone know why ?
jmh9072
DD-WRT Guru


Joined: 04 Sep 2007
Posts: 800
Location: Ohio

PostPosted: Wed Nov 12, 2008 3:23    Post subject: Reply with quote
For those looking for a way to revert the WRT54GS v5 and v6 units, the revert file is located here. It has been for quite some time (timestamp says March 2007).
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neonknight77
DD-WRT Novice


Joined: 10 Aug 2008
Posts: 17

PostPosted: Wed Nov 12, 2008 21:06    Post subject: Reply with quote
Will this also work is WRT54GS v.6's?
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