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New Born
pshevtsov
Posts: 5
Registered: 01-22-2012
0

I need help to debrick my WZR-HP-G300NH, please

Hello all!

I flashed new professional firmware 17798-alpha without a problem. But then I decided to revert back to friendly edition v1.79. But after I flash it from web interface - my router stops working. It flash 2 times by diag led, waits for 3 sec and then flash 2 times again and so on.

I found this post describing how to unbrick router. But this doesn't helps. I've tried to TFTP a lot of firmwares, but this didn't help. Maybe I'm trying not correct firmware to TFTP?

Router model: WZR-HP-G300NH,  A0 A1. SSID: 001D7390830B.

 

Can anyone tell me what to do to get my router back to life?

 

P.S.. Sorry for my english :)

Herd Leader
buddee
Posts: 370
Registered: 01-20-2011

Re: I need help to debrick my WZR-HP-G300NH, please

[ Edited ]

what operating system do you use? also i am going to assume this is a G300NH v1. if you use windows xp you can tftp like so..

 

Power the router off for now. Make sure you are wired into the switch.

 

1) Set a static ip on the pc of 192.168.11.2 / 255.255.255.0 Gateway: 192.168.11.1

 

2) Open a command prompt and type this: arp -s 192.168.11.1 02-AA-BB-CC-DD-1A [enter]

 

3) After entering the static arp have the command line ready with this command (and you'll have to be in the dir where the firmware image is at or it won't work): tftp -i 192.168.11.1 put wzrhpg300nh-pro-v24sp2-17798-alpha.enc

 

4) Do not enter the TFTP command, just having it waiting for now,  Plug in the power for the router and count to 10 seconds, then enter the TFTP command that you should have waiting in the command prompt.

 

5) You'll know if it transferred by the command prompt telling you so, give it about 5 minutes after is transfer was successful, it'll reset/program itself in this time. One it is complete the Red Diag LED should go off and then you can access it at 192.168.11.1

 

New Born
pshevtsov
Posts: 5
Registered: 01-22-2012
0

Re: I need help to debrick my WZR-HP-G300NH, please

Thanks for answering.

I'm using Windows 7 Home Premium.

I did all that you write. But this didn't help.

TFTP wrote that transfer was successful. I waited for about 10 minutes, after TFTP command. But DIAG led still blinking 2 times.

Is it possible to see somekind a log of flashing proccess by TFTP command?

Herd Leader
buddee
Posts: 370
Registered: 01-20-2011
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Re: I need help to debrick my WZR-HP-G300NH, please

Hrm, Win7? I don't even think it has a command line TFTP, you aren't using some kinda 3rd party application to do the TFTP transfer with, are you?

New Born
pshevtsov
Posts: 5
Registered: 01-22-2012
0

Re: I need help to debrick my WZR-HP-G300NH, please

TFTP exists in Win 7, you just need to install it by yourself, because TFTP (and telnet) program is optional.

I think the problem is in firmware file that I TFTPing in router...  

Is it possible to see logs of uboot? I can't find information for doing this :(

Herd Leader
buddee
Posts: 370
Registered: 01-20-2011
0

Re: I need help to debrick my WZR-HP-G300NH, please

There is no log with uboot, the only way you can see uboot's output is if you have a serial connection to the router.

Juvenile
Robotix
Posts: 17
Registered: 02-08-2012
0

Re: I need help to debrick my WZR-HP-G300NH, please

[ Edited ]

Buddee:

 

How do you put the firmware in the same directory in this command?  This is where I'm having problems, since it can not find the file and tells me it doesn't exist

Herd Leader
buddee
Posts: 370
Registered: 01-20-2011
0

Re: I need help to debrick my WZR-HP-G300NH, please

Put it in your main C:\

 

Then just command prompt from C:

 

The file should be in there then, once you are finished with the procedure, you can delete the file from C:\

 

 

Juvenile
Robotix
Posts: 17
Registered: 02-08-2012
0

Re: I need help to debrick my WZR-HP-G300NH, please

[ Edited ]

Thanks for your reply Buddee

 

I finally could get to this file, but after getting to this step and connecting the plug back into the router, it gives me this message (I´ll translate it  from Spanish which is my native tongue). " WAITING TIME IS OVER" and doesn´t transfer the file.

 

What in heaven am I doing wrong this time? 

Herd Leader
buddee
Posts: 370
Registered: 01-20-2011
0

Re: I need help to debrick my WZR-HP-G300NH, please

Not sure what you are doing wrong. TFTP is very much about timing. So step 4 is very important.