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710 posts

Ultimate Geek
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Topic # 110661 13-Oct-2012 15:44 Send private message

Hi

I have a few Zenbu Routers that we don't use anymore and want to flash the standard linksys firmware on them WRT54GL.

Anyone know how it can be done?

Dion

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  Reply # 700680 13-Oct-2012 15:48 Send private message

TFTP for a start. If that doesn't work you'll need to use a JTAG cable to clear it and start again.
 

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  Reply # 700812 14-Oct-2012 00:16 Send private message

Pretty sure you could just use the bricked firmware recovery method and flash DD-WRT onto it using TFTP




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710 posts

Ultimate Geek
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  Reply # 700876 14-Oct-2012 10:13 Send private message

cheers will dig up some instructions and try it out.

Dion

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  Reply # 700897 14-Oct-2012 10:55 Send private message

Yea if it's like the one I just did last week, download the latest firmware from linksys and a tftp program.
I used a small one called tftp2.exe, can't remember where I got it from sorry.
Set your computer to a static ip of 192.168.1.10 and connect a patch cable from that to port 1 on the linksys.
Disconnect all other cables from the linksys.
Run the tftp software and set the ip to 192.168.1.1 and select the firmware file but don't start the upload yet.
Open a command prompt on your computer and ping 192.168.1.1 -t.
Now connect the power to the linksys and watch the pings. As soon as you get a reply start the tftp upload.
Hopefully it will do its thing.
If you never get a ping response try holding the reset button on the linksys for about 10 seconds then wait and see if it responds.






710 posts

Ultimate Geek
+1 received by user: 14


  Reply # 700899 14-Oct-2012 11:01 Send private message

CYaBro: Yea if it's like the one I just did last week, download the latest firmware from linksys and a tftp program.
I used a small one called tftp2.exe, can't remember where I got it from sorry.
Set your computer to a static ip of 192.168.1.10 and connect a patch cable from that to port 1 on the linksys.
Disconnect all other cables from the linksys.
Run the tftp software and set the ip to 192.168.1.1 and select the firmware file but don't start the upload yet.
Open a command prompt on your computer and ping 192.168.1.1 -t.
Now connect the power to the linksys and watch the pings. As soon as you get a reply start the tftp upload.
Hopefully it will do its thing.
If you never get a ping response try holding the reset button on the linksys for about 10 seconds then wait and see if it responds.


Cheers will try it out tonight, was hoping to do it at work today as it is for work but I left it at home.

Regards



Dion



710 posts

Ultimate Geek
+1 received by user: 14


  Reply # 701088 14-Oct-2012 19:06 Send private message

CYaBro: Yea if it's like the one I just did last week, download the latest firmware from linksys and a tftp program.
I used a small one called tftp2.exe, can't remember where I got it from sorry.
Set your computer to a static ip of 192.168.1.10 and connect a patch cable from that to port 1 on the linksys.
Disconnect all other cables from the linksys.
Run the tftp software and set the ip to 192.168.1.1 and select the firmware file but don't start the upload yet.
Open a command prompt on your computer and ping 192.168.1.1 -t.
Now connect the power to the linksys and watch the pings. As soon as you get a reply start the tftp upload.
Hopefully it will do its thing.
If you never get a ping response try holding the reset button on the linksys for about 10 seconds then wait and see if it responds.


I tried doing that and get the pings but keep getting  a time out when I try and push the image to it, any other suggestions, I note there is a password field but I have left it blank.

Dion

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  Reply # 701089 14-Oct-2012 19:08 Send private message

Some custom firmware such as this doesn't allow an easy path back to the stock Linksys firmware. The only way to do this in many cases is to use a JTAG cable.



710 posts

Ultimate Geek
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  Reply # 701092 14-Oct-2012 19:17 Send private message

sbiddle: Some custom firmware such as this doesn't allow an easy path back to the stock Linksys firmware. The only way to do this in many cases is to use a JTAG cable.


Is there anywhere local to get them other than ebay?

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