Upgraded to 1.7.2 on Buffalo g300n, but now bricked?

[alexdodd]

That didn't quite go to plan, downloaded the sysupgrade file. Checked the MD5. Upgraded through Gargoyle on the web interface via an ethernet cable. But now my router appears to be pretty squarely dead. From what I can read it's probably not totally bricked but i'm not getting the same lights as a failed flash

So if I plug my router in I get all lights flash, then just DIAG (RED) solid and Power (GREEN) Solid. That's it, no blinking no response, no nothing.

I've unplugged it and followed the openWRT bricked routine with TFTP2.exe set my ethernet static IP to 192.168.11.2 and Gateway to 192.168.11.1 and sorted arp tables and "netsh interface ipv4 add neighbors 13 192.168.11.1 02-aa-bb-cc-dd-20". Which as far as i'm aware should have set me up for transferring an image file over that way?

Plugged the power in, hit upgrade, and waited, but 20 retries went by and nada. Left it 15 minutes, no response.

Any thoughts from here?

[alexdodd]

sh***.

It has just occurred in my utter stupidity I downloaded and MD5 checked and flashed "gargoyle_1.7.2-ar71xx-generic-wzr-hp-g300nh-squashfs-sysupgrade" instead of "gargoyle_1.7.2-ar71xx-generic-wzr-hp-ag300h-squashfs-sysupgrade"

Not that that fact appears to help me now.

**** sure it should have just failed to flash and I could recover easily? What's going on here?

[dlogictech]

Hello Alexdodd,

You can try this and hopefully it will work for you...
Good Luck:
http://www.dd-wrt.com/phpBB2/viewtopic. ... 458087f156

[alexdodd]

So i've pretty much done that already, albeit with a GUI app but gave the command line a go, it gets no response, and times out. So i'm guessing something somewhere has pretty goosed up... Shame

[Lantis]

It could be serial flash time.

See the openwrt wiki for your router.

[alexdodd]

*double post on mobile broadband*

[alexdodd]

Yeeeep, ****, I really screwed that up somehow, serial flash sounds:

a) Scary
&
b) Trouble

But this router cost me a fortune a few years back

[Lantis]

A USB to serial converter for this kind of thing is probably $10 on eBay.
Gotta weigh it up against the cost of a new router.

It's $10 to maybe see it live to fight another day or $XX for a new router.

As someone who programs stuff with serial every day. It's not too scary. And if you look at it on an oscilloscope it's quite beautiful

[alexdodd]

Yep yep, just took the plunge on a usb to serial convertor, and when it arrives, then await my thread to clarify everything.

I can see technically what i need to do, but updating shouldn't have been difficult now should it?

I get the impression I'm open to much more irreparable damage via serial connection

[alexdodd]

It's been quite a while! Parts sitting here waiting. So its a rainy day i've soldered some header pins to the router, and soldered header connectors to a USB to serial cable i've picked up. The cable colours out of the converter are: Red, Black, Green and White. I assume these relate to VCC, GND, TX, RX?

I can move them around anyway. I know what the router headers are because of this:


Now I'm not sure where I go from here flashing wise and how with this cable? I'm using Linux mint and can "follow instructions" but i'm far from software competent in this area. Soldering and hardware are fine however.

I've got completely lost reading through these:
http://wiki.openwrt.org/toh/buffalo/wzr-hp-ag300h
http://wiki.openwrt.org/doc/howto/generic.debrick
http://wiki.openwrt.org/doc/hardware/port.serial

and presume I may need one of these:
http://sourceforge.net/projects/cutecom/
http://man.cx/screen

But i'm overwhelmed already, could anyone care to shed some light?
Would like to get this beauty of a router working again, and I promise not to mess it up this time