WBMR-HP-G300H Properly Bricked

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manuforti
DD-WRT User


Joined: 30 Sep 2007
Posts: 151
Location: Scotland, UK.
PostPosted: Fri Mar 08, 2013 17:22    Post subject: WBMR-HP-G300H Properly Bricked Reply with quote
Hi,

I have a WBMR-HP-G300H that appears to be totally bricked, well almost totally.

The gigabit switch still works, the leds with switch work but nothing else.

No other LEDs work, I get nothing on serial at all and apart from the leds on the RJ45 ports you would not know the device is on.

Did we ever find jtag on the device?

Any ideas?
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Peuk
DD-WRT Novice


Joined: 21 Jun 2012
Posts: 4
PostPosted: Sat Mar 09, 2013 19:47    Post subject: Re: WBMR-HP-G300H Properly Bricked Reply with quote
manuforti wrote:
Hi,

I have a WBMR-HP-G300H that appears to be totally bricked, well almost totally.

The gigabit switch still works, the leds with switch work but nothing else.

No other LEDs work, I get nothing on serial at all and apart from the leds on the RJ45 ports you would not know the device is on.

Did we ever find jtag on the device?

Any ideas?


Hello,

it's not very difficult to unbrick this modem. Just see here :

http://s4ff.blogspot.com.es/2012/11/buffalo-wbmr-hp-g300h-how-to-recover.html

later, you can put ddwrt with web-upgrade using ulmage.bin
ftp://dd-wrt.com/others/eko/BrainSlayer-V24-preSP2/2013/02-11-2013-r20675/buffalo_wbmr_g300nh/uImage.bin

I've unbricked my modem using this method (intemp to revert to factory -> bricked)
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manuforti
DD-WRT User


Joined: 30 Sep 2007
Posts: 151
Location: Scotland, UK.
PostPosted: Sun Mar 10, 2013 14:18    Post subject: Reply with quote
Thanks for the reply, I should have mentioned originally that nothing happens when I power up with the AOSS button depressed.

Wireshark does not see anything coming from the device.

I'm not sure how things ended up this way but the unit had not been opened so I'm thinking a real bad flash that screwed the bootloader or something more permenant like a hardware failure.

Still odd that the switch works which is what is giving me hope. Very Happy
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manuforti
DD-WRT User


Joined: 30 Sep 2007
Posts: 151
Location: Scotland, UK.
PostPosted: Sat Mar 30, 2013 9:06    Post subject: Reply with quote
Bump.

Anyone ever managed to jtag one of these?
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