I managed to brick my DG834G V3. I was doing a routine upgrade, and flashed an image through the web panel. Something went wrong but seemingly something like that can happen when the image is close to the 4 MB mark. Thought nothing of it as I entered recovery mode, and went on with:
# ./nftp -u eth0 ../Dropbox/DG834/DG834GV3_V4.01.40_DGTeam_1022_eng_adsldrv703.img Sending frame on eth0 (a:b:c:d:e:f) Found a router at x:y:z:t:u:w Router is a DG834V3 Current version is 4128 If everything above looks good, press Enter now. Erasing flash, this will take around ten seconds... Upgrading: 1024/4063232 bytes
However, erasing took a lot more than 10 seconds, and Upgrading never went further than 1024. After about half an hour of this I gave up and pulled the plug.
Now whenever power is applied, the Power light goes solid green, but Test keeps blinking. Then the LAN light comes up, but shortly after that the router resets itself: Power and Test turn off, Internet and 1-2-3-4 light up briefly and then it's back to square 1.
I've tried the 30/30/30 reset thing but whenever the reset button is pressed, the router just keeps rebooting furiously. I've also attempted setting up a static route but so far with no luck at all. Is there anything I can do to get it unstuck, or JTAG is my only option?
BTW the router was working well before the bad flash, still I wonder if it's possible that it failed twice because of some previously undetected hardware problem?