JTAG Buffalo Router ?

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tikilou
DD-WRT Novice


Joined: 22 May 2012
Posts: 3
Location: France

PostPosted: Thu Jul 05, 2012 15:25    Post subject: JTAG Buffalo Router ? Reply with quote
Hello, i have try to flash my WBMR-HP-G300H with the build-source firmware, and now, the router do not respond for anything method...

I try tftp for unbrick, do not work, my router start with a orange&green led 10 second, and stop...
I try serial method with pl2303 chip TTL USB + Putty, same problem, the router does not respond.

Have an idea to help me? In the wiki OpenWRT, it is said he has a JTAG port, information about it?

Ps : Sorry for my bad english

Ps2 : this man have the same problem, his english is better => http://forums.buffalotech.com/t5/Wireless/Unbrick-Buffalo-WBMR-HP-G300H/td-p/96228

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Salut, j'ai essayé de flasher mon routeur ADSL WBMR HP G300H acheté il y a quelques jours avec le firmware compilé depuis les sources proposées par le projet OpenWRT, et ce dernier semble désormais brické depuis son redémarrage. (Alors que sous DD-WRT, ça passait)

J'ai essayé de le reflasher par TFTP, mais je n'ai aucune réponse du routeur, pas moyen d'arriver à quoi que ce soit, il démarre avec les deux leds (orange&vert/Power) durant une dizaine de secondes, puis plus rien, tout s'éteint (hormis les leds associées aux ports RJ45 quand j'en branche un actif.)
Seul comportement notable, si je branche le routeur avec le bouton wifi enfoncé, la led orange "Security" s'allume avec les autres au démarrage.

J'ai aussi tenté la méthode du port série avec un adaptateur USB TTL et chipset PL2303 sous Linux comme Windows, mais je n'ai eu aucune réponse du routeur.

Quelqu'un a une idée pour m'aider à avancer? Sur le wiki il est indiqué qu'il y a un port JTAG sur ce routeur ADSL, on le voit bien à coté du port Série (enfin, j'imagine que c'est ça), mais aucune information sur ce dernier? Comment/quoi y souder et flasher?

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Same problem, 1 month, no solution on openwrt forum => https://forum.openwrt.org/viewtopic.php?pid=169950

Sad


Last edited by tikilou on Sun Aug 05, 2012 9:38; edited 1 time in total
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tikilou
DD-WRT Novice


Joined: 22 May 2012
Posts: 3
Location: France

PostPosted: Sun Jul 08, 2012 18:41    Post subject: Reply with quote
Up ! Laughing
tikilou
DD-WRT Novice


Joined: 22 May 2012
Posts: 3
Location: France

PostPosted: Sun Aug 05, 2012 9:36    Post subject: Reply with quote
HELP PLEASE !!!!!

Nobody know how i can flash the router with JTAG?

I have buy a universal jtag adaptater, but not found tutorial or information for unbrick all séries WBMR/WZR router of Buffalo !

http://www.diygadget.com/universal-jtag-adapter-v2-wiggler-and-xilinx-platform-cable-compatible-debrick-routers-modems-and-more.html


I don't understand, dd-wrt can be used on this router, and he use a lantiq open source adsl driver ! -_-
breaker
DD-WRT Novice


Joined: 01 Jan 2012
Posts: 45

PostPosted: Sun Aug 05, 2012 11:01    Post subject: Reply with quote
i would try to ask in the open wrt forum/chat. because support for dd-wrt in such a case is very rare. maybe this can help you http://g300nh.blogspot.de/2010/06/firmware-flash-and-brick-recovery.html
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