WHR G300N Revert to original firmware

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DDWRTTom
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Joined: 04 Feb 2010
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PostPosted: Sat Feb 27, 2010 21:35    Post subject: WHR G300N Revert to original firmware Reply with quote
Hello WHR G300N users,

first of all DD-WRT is great. I have it running on two WRT160N in wireless bridge mode in order to connect a Sony TV to a twonky server on a NAS.

Unfortunately I bought two WHR G300N before buying the two WRT160Ns. As for me the buffalos are unstable with DD-WRT (I tested different configuration, different firmwares, different days,...) I would like to know if somebody was able to revert the firmware (with or without the use of jtag).

Best regards,
Thomas
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bubbl3
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PostPosted: Sun Feb 28, 2010 4:00    Post subject: Reply with quote
It seems it's impossible without decrypting the firmware and atm we don't have a decrypted firmware.
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DDWRTTom
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PostPosted: Sun Feb 28, 2010 5:42    Post subject: Reply with quote
I wonder if there is a flash dump available. I assume that a dump is not so different from an image that may be flashed with DDWRT.
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Kcolyhs
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Joined: 03 Aug 2009
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PostPosted: Mon Mar 01, 2010 5:35    Post subject: Reply with quote
DDWRTTom wrote:
I wonder if there is a flash dump available. I assume that a dump is not so different from an image that may be flashed with DDWRT.


Actually there was an old post about a flash dump at:

http://www.dd-wrt.com/phpBB2/viewtopic.php?t=55328&sid=8c7bc1dd7b7bfac2ffd66f2b3fc4cc06

"(if you, by any chance, have found a way to access the flash and need the bootloader: i just made a dump of my whr-g300n memory excluding the nvram

http://andrej.in/whrg300n_flash.rar

Code:

dev: size erasesize name
mtd0: 00030000 00010000 "uboot"
mtd1: 00010000 00010000 "uboot-config"
mtd2: 00010000 00010000 "factory-defaults"
mtd3: 003a0000 00010000 "linux"
mtd4: 002ce000 00010000 "rootfs"
mtd5: 00010000 00010000 "nvram")"

Might prove useful to revert to Buffalo firmware?
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bubbl3
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PostPosted: Mon Mar 01, 2010 7:26    Post subject: Reply with quote
Kcolyhs wrote:
DDWRTTom wrote:
I wonder if there is a flash dump available. I assume that a dump is not so different from an image that may be flashed with DDWRT.


Actually there was an old post about a flash dump at:

http://www.dd-wrt.com/phpBB2/viewtopic.php?t=55328&sid=8c7bc1dd7b7bfac2ffd66f2b3fc4cc06

"(if you, by any chance, have found a way to access the flash and need the bootloader: i just made a dump of my whr-g300n memory excluding the nvram

http://andrej.in/whrg300n_flash.rar

Code:

dev: size erasesize name
mtd0: 00030000 00010000 "uboot"
mtd1: 00010000 00010000 "uboot-config"
mtd2: 00010000 00010000 "factory-defaults"
mtd3: 003a0000 00010000 "linux"
mtd4: 002ce000 00010000 "rootfs"
mtd5: 00010000 00010000 "nvram")"

Might prove useful to revert to Buffalo firmware?


I think it is useful, but i would rather wait someone with a larger experience to try it before me.
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DDWRTTom
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PostPosted: Wed Mar 03, 2010 19:36    Post subject: Reply with quote
Thanks for the info!

Does anybody now how an image has to be organized that can be flashed with the DDWRT software ? Is it possible to generate an image out of the dumps ?

I guess at least the non volotile ram contents should not be burned to flash ;-)

Best regards,
Thomas
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DoesItMatter
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PostPosted: Fri Mar 12, 2010 10:44    Post subject: Reply with quote
Don't bother...

I downloaded that rar file and opened up the files in notepad.

The Linux and uRoot info both had DD-WRT info headers

Looks like the original poster took a dump of his memory with DD-WRT firmware loaded.

This dump will NOT restore you back to original WHR-G300N firmware.
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DDWRTTom
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PostPosted: Fri Mar 12, 2010 11:25    Post subject: Reply with quote
Thanks a lot for the info...
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freeurmind
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PostPosted: Sat May 15, 2010 12:25    Post subject: Reply with quote
I found some "buffalo factory revert" firmwares for other models here:
http://www.dd-wrt.com/dd-wrtv2/down.php?path=downloads%2Fothers%2Fbuffalo+factory+revert+/

Also refer to WHR-HP-G300N thread:
http://mail.dd-wrt.com/phpBB2/viewtopic.php?t=68278&postdays=0&postorder=asc&start=60&sid=b72ff867fb702e89c11828909a5ea112

Assuming revert to stock firmware is possible as long as BrainSlayer releases WHR-G300N factory firmware as decrypted.
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brycemt
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PostPosted: Wed May 19, 2010 17:04    Post subject: possible solution Reply with quote
this post may help

http://www.dd-wrt.com/phpBB2/viewtopic.php?p=442643#442643
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Kcolyhs
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PostPosted: Wed May 19, 2010 18:46    Post subject: Re: possible solution Reply with quote
brycemt wrote:
this post may help

http://www.dd-wrt.com/phpBB2/viewtopic.php?p=442643#442643


This is fantastic news.
I have been having a nightmare with DD-WRT on this router.
If I can revert to Buffalo firmware this sad experience will be resolved.
Why have none of the moderators suggested that it is possible to revert so easily?
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DoesItMatter
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PostPosted: Thu May 20, 2010 10:52    Post subject: Reply with quote
Remember one important thing about this.

WHR-G300N is not the WHR-HP-G300N

The WHR-HP-G300N's are different hardware.

The HP (High Power) versions are Atheros based.

I don't know if Brainslayer has un-encrypted WHR-G300N firmware.

It would be awesome if he can post it.
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LOM
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PostPosted: Fri May 21, 2010 6:32    Post subject: Reply with quote
DoesItMatter wrote:


I don't know if Brainslayer has un-encrypted WHR-G300N firmware.

It would be awesome if he can post it.


The tftp method does not accept un-encrypted firmware so that is of no help.
A dd-wrt-to-buffalo-revert file is only useful for revert via the gui, a gui that you don't have access to if the router is semi-bricked.
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junpit
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Joined: 06 Nov 2007
Posts: 27
PostPosted: Fri May 28, 2010 14:22    Post subject: Reply with quote
Hi

Has anyone managed to get the encrypted firmware flashed back to the WHR-G300N? I've looked at this article on the atheros forum, but I'm not sure if the same approach will work the for the ralink chipset.

I desperately need to replace my G300N's as they don't do IPV6 and would like to be able to revert them so that I can sell them. I'm not happy selling them with dd-wrt on as I wouldn't want someone else to have to suffer what I consider is a bugged firmware at the moment.

IPV6 has become a mandatory requirement for the project I'm working on.

Thanks

Junpit
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DoesItMatter
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PostPosted: Fri May 28, 2010 15:05    Post subject: Reply with quote
Not possible as of yet for the WHR-G300N.

Maybe in the future, maybe not.

You may be stuck trying to sell them with DD-WRT on them.
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