Posted: Thu Apr 16, 2009 23:44 Post subject: WRT300 V1.1 - Jtag port confirmation
I just bought a wrt300n v1.1 refurb. Probably one that someone here bricked and brought it back
I fired it up to make sure is is not DOA and it works.
Next step is to take it apart.
Before I mess with it, it is my practice to back it up via jtag. In reading some old posts in regards to support for this device, I read that the jtag port was a tiny 12 pin port. In the pic, that would be JP1.
I also read that JP2 was confirmed to be the jtag port. However, JP2 is a 5 pin port on the normal 0.100 spacing. I believe that JP2 would be the serial port.
JP3 on the other hand, looks like a normal linksys jtag port. It is on 0.100 spacing, pins 2-12 are ground, and pins 1-11 have SMC resisters present.
I'm asking cause JP3 holes are filled with solder so it is a bit of work to clean'em up to get the header put in so I don't want to do that work to find out JP2 (the 5 pin) is really the jtag header (which also needs cleaning up).
Any confirmation would be appreciated. _________________ [MODERATOR DELETED]
Joined: 04 Jan 2007 Posts: 10812 Location: Wherever the wind blows- North America
Posted: Thu Apr 16, 2009 23:53 Post subject:
JP3 is most likely your JTAG. JP2 is serial. JP1????
[EDIT] - it could also be that you have 2 JTAG ports...one is for the flash chip...the other is for the radio chip....I remember Eko saying that there are 2 JTAGs on some units. You can program the radio separately....I guess....don't know how or why though.
redhawk _________________ I currently test dd-wrt on Asus, Buffalo, Linksys, and Netgear. Too many to list.
Looking for more test units (newer models) for the project...got a brick?...PM me to make a donation. (USA) A donation is not a debricking service....it is a way to "Give back" to the dd-wrt project.
I do NOT provide personal assistance through chat or phone....so please don't ask.
Red... This is one of the old threads that say JP1 is the jtag port.. However, it's hard to follow..
That's a little f$cking port... I assume the pins are the same, just tiny. Maybe I won't worry about it till I brick it
$hit... I don't have any of those headers.. Maybe I'll solder in pins.
I could order a header or 10, but the damn shipping is more than the parts. I gotta measure the centers of the holes so I know what to get.
I got it running dd-wrt. The install was painless so maybe I won't worry about it for now.
It's a nice router.. The only thing that would make it 100& would be to have removable antenna's but they are fixed.
Getting it apart was a bitch.. It took a minute or two to figure it out without breaking anything.
The wife is gone all next week so I got something to do now.
Incase anyone is interested... E-Cost.com has these for 39 bucks. They are refurb's but it came in a linksys box with a big refurb sticker on it. So it is factory serviced, not used (you know what I mean).
I wonder which member of this community bricked it and returned it. _________________ [MODERATOR DELETED]