Unbricking WHR-G300N

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Badoodles
DD-WRT Novice


Joined: 14 Sep 2010
Posts: 2

PostPosted: Tue Sep 14, 2010 6:04    Post subject: Unbricking WHR-G300N Reply with quote
Can anyone help me to unbrick my WHR-G300N...

i flash it with DD-WRT... cant access it anymore ...

i already tried hard reset 30/30/30 it wont work...
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DoesItMatter
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Joined: 10 May 2008
Posts: 1380
Location: Pacific North West, USA

PostPosted: Tue Sep 14, 2010 7:01    Post subject: Reply with quote
How is it 'bricked'

I have bricked a WHR-G300N

When it is bricked, only 1 LED shows lit and the RED LED is OFF

IF it is in that state - it is probably bricked.

If your WHR-G300N has a flashing red led - it is NOT bricked
You can recover, but you have to open it up and recover via serial console.

More info is needed.

what did you flash? what lights are lit? what OS are you using?

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Badoodles
DD-WRT Novice


Joined: 14 Sep 2010
Posts: 2

PostPosted: Tue Sep 14, 2010 8:39    Post subject: Reply with quote
i flashed it with a wrong firmware a dd-wrt for whr-hp-g300n...:(

only the green light(power) and red light(diag) are lit..

i use windows xp...
bason
DD-WRT Novice


Joined: 05 Sep 2010
Posts: 29

PostPosted: Tue Sep 14, 2010 9:24    Post subject: Reply with quote
Badoodles wrote:
i flashed it with a wrong firmware a dd-wrt for whr-hp-g300n...:(

only the green light(power) and red light(diag) are lit..

i use windows xp...


You can probably do a tftp flash again.
I am still able to flash when my WHR-G300N cannot boot; ie, only power led are lit and the diag led blinking.
DoesItMatter
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Joined: 10 May 2008
Posts: 1380
Location: Pacific North West, USA

PostPosted: Tue Sep 14, 2010 9:28    Post subject: Reply with quote
Badoodles wrote:
i flashed it with a wrong firmware a dd-wrt for whr-hp-g300n...:(

only the green light(power) and red light(diag) are lit..

i use windows xp...


http://www.dd-wrt.com/wiki/index.php/WHR-G300N

Follow the TFTP flashing the easy way

Read it, re-read it, then try flashing.

Red light blinking = Uboot waiting for a valid firmware

your router is definitely not bricked - it is recoverable.

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enrico
DD-WRT Novice


Joined: 04 Aug 2008
Posts: 5

PostPosted: Thu Sep 16, 2010 7:55    Post subject: Reply with quote
I managed to do exactly the same thing as the OP, although I've had no luck with the TFTP flash so far.

As with the OP's WHR-G300N, mine displays a constant red DIAG light (not blinking) and the green power light.

When booting, first all lights flash once, then the DIAG light flashes three times, then stays on. This takes about 2 seconds.

I've followed "TFTP flashing - The easy way" but I get no response when pinging 192.168.11.1 as the device is loading and TFTP can't do any better. Any suggestions? Embarassed
DoesItMatter
DD-WRT Guru


Joined: 10 May 2008
Posts: 1380
Location: Pacific North West, USA

PostPosted: Thu Sep 16, 2010 8:48    Post subject: Reply with quote
enrico wrote:
I managed to do exactly the same thing as the OP, although I've had no luck with the TFTP flash so far.

As with the OP's WHR-G300N, mine displays a constant red DIAG light (not blinking) and the green power light.

When booting, first all lights flash once, then the DIAG light flashes three times, then stays on. This takes about 2 seconds.

I've followed "TFTP flashing - The easy way" but I get no response when pinging 192.168.11.1 as the device is loading and TFTP can't do any better. Any suggestions? Embarassed


What OS are you using?

The #1 problem with TFTP flashing is if you are using Windows Vista or Windows 7

It has an upgraded TCP/IP stack which will disable the network port on your computer
if it does not detect any connectivity, and it can take 3-5 seconds to re-activate it when you power-cycle the routers.

Because the TFTP window is also around 2-4 seconds as well, you can miss the TFTP window!

Windows XP does not do this to the network port, it leaves it active as well as Linux.

If you cannot get access to Win XP - try a Linux Live CD
Or alternatively - you can put a hub or switch between the computer / router
so that Windows thinks that the network port remains active.

Last possibility - connect a serial cable to it and flash through u-boot.

It is HARD to brick the WHR-G300N - it's almost always recoverable.

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dg9ekc
DD-WRT User


Joined: 04 Oct 2006
Posts: 249
Location: germany/nrw/düsseldorf

PostPosted: Fri Sep 17, 2010 8:20    Post subject: Reply with quote
Hi

download http://www.dd-wrt.com/dd-wrtv2/downloads/others/eko/BrainSlayer-V24-preSP2/08-12-10-r14929/WHR-G300N/firmware.tftp

download http://www.dd-wrt.com/dd-wrtv2/downloads/others/tornado/Windows-TFTP/tftp2.exe

1. Power off router
2. Turn off firewall , in Win7 the Windows Firewall too !!
3. Start tftp2 . select the firmware.tftp , set Server : to 192.168.11.1
4. Set your networkcard to 192.168.11.x Gateway 192.168.11.1
5. Power on router , when the networkcard detects connection klick upgrade.
6. Wait
7. When the router have rebootet set your networkcard to 192.168.1.x Gateway 192.168.1.1
8 Try http://192.168.1.1 and set login name and Password.

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enrico
DD-WRT Novice


Joined: 04 Aug 2008
Posts: 5

PostPosted: Tue Sep 21, 2010 3:30    Post subject: Reply with quote
Sorry about the delay in replying.

I'm on a mac, I've followed the mac advice listed here: http://www.thevivekspot.com/2009/12/how-to-flash-buffalo-routers-firmware_27.html linked from http://www.dd-wrt.com/wiki/index.php/WHR-G300N

During Step 4 I should be able to ping the router:

Code:

PING 192.168.11.1 (192.168.11.1): 56 data bytes
Request timeout for icmp_seq 0
Request timeout for icmp_seq 1
Request timeout for icmp_seq 2
Request timeout for icmp_seq 3
ping: sendto: No route to host


As you can see, the router is not responding. I've also tried pinging as the router is starting up, with the same results.[/code]
dg9ekc
DD-WRT User


Joined: 04 Oct 2006
Posts: 249
Location: germany/nrw/düsseldorf

PostPosted: Fri Sep 24, 2010 14:56    Post subject: Reply with quote
Hi

you cant ping the router because the time for the tftp is 2-4 sec.

if you have a symbol or icon that show if the network established or not then you must type put firmware.tftp and press Enter when the network is established after reboot from router.

see point 5 of my post

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enrico
DD-WRT Novice


Joined: 04 Aug 2008
Posts: 5

PostPosted: Sun Sep 26, 2010 2:57    Post subject: Reply with quote
Thanks very much, you were right about the timing. Router is back up and running
janhin
DD-WRT Novice


Joined: 03 Aug 2006
Posts: 27

PostPosted: Thu Feb 09, 2012 11:23    Post subject: Reply with quote
Hello.
Flashed some generic firmware and got it out of work.
Have tried to follow all steps but I can NOT get my router to "talk" to the TFTP server.

My router DIAG led blinks twice a second.

Should TFTP be possible or is a serial console the only way out?

If yes is there a "howto" to do that on this router?
enrico
DD-WRT Novice


Joined: 04 Aug 2008
Posts: 5

PostPosted: Thu Feb 09, 2012 12:24    Post subject: Reply with quote
haha, this page is 2 years old. I just kept trying, I can't remember the exact diagnosis of my routers problems, but I tried for about 15 min, eventually i just got the timing right.
Robotix
DD-WRT Novice


Joined: 17 Nov 2011
Posts: 19

PostPosted: Thu Feb 09, 2012 15:08    Post subject: Reply with quote
I have a similar problem, only that I get two lights on: The On and the wireless one. The Diag light is off all the time.
janhin
DD-WRT Novice


Joined: 03 Aug 2006
Posts: 27

PostPosted: Thu Feb 09, 2012 21:02    Post subject: Reply with quote
haha...time for me to laugh.

Reply from Buffalo regarding my diag lamp flashes twice.

Unplug the AC adapter from the wall socket, wait for a few seconds, and then plug it again. If the unit pulls up the same error then the unit needs to be replaced.

Thank you,

Marcel
Buffalo Technical Support
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