Help identifying a component on a wireless router.

[retiredcaps]

Re: Help identifying a component on a wireless router.

That Netgear router can run DD-WRT and Tomato as well.

I did not mention DD-WRT only because it hasn't been updated since 2013-04-23. With Tomato, it has not been updated since 2010 June 28. So both are basically abandoned projects for general public usage.

Openwrt has recent and ongoing releases which is important for security fixes. The latest release candidate was dated July 15, 2015.

PS. My wifi router is a Linksys at home running stock Linksys firmware. While I do have a newer wifi router that can run the latest openwrt, I will use this Linksys until it dies. And yes, I have locked down the Linksys router down as best as I reasonably can.

[SteveNielsen]

Re: Help identifying a component on a wireless router.

Concerning flashing DD-WRT if a person researches and follows ALL the instructions there will be no router bricking to worry about. For this particular router I believe it is a two part flash, you find and flash the basic DD-WRT release for the base router model type and then flash to an updated release for that specific model and v#.

[keeney123]

Re: Help identifying a component on a wireless router.

I also found this on the internet. Do not know how good it is. Also, make sure if you are handling components that you have a ground strap which is connected to good ground.

http://www.stevejenkins.com/blog/201...-dd-wrt-flash/

[SteveNielsen]

Re: Help identifying a component on a wireless router.

That Netgear router can run DD-WRT and Tomato as well.

[keeney123]

Re: Help identifying a component on a wireless router.

Seems to me it is being used as a switch to turn on power to 1138 coil. It is hard to tell being I can see the whole circuit clearly going to this coil. It is partially a guess.

[retiredcaps]

Re: Help identifying a component on a wireless router.

Before you do any hardware changes, see if your firmware is the latest and greatest from the manufacturer.

I also see that Netgear can run openwrt.

http://wiki.openwrt.org/toh/start?da...*~%5D=wndr3400

You might either or the above?

[Spork Schivago]

Hi,

We have a broken Netgear wndr3400v2 dual-band wireless router. The wifi doesn't work correctly. We can see the wireless networks, however, every time we try to connect via the 2.4GHz bandwidth (for example, using wireless G), we can never access the internet / router. The router sees the device's MAC address but never assigns an IP address. If we try using a static IP address, it doesn't work. Wired works. I believe the 5 GHz band works but haven't checked.

Anyway, I have taken it apart and identified a component that I think might be bad. It appears kind of burnt, I'm having trouble identifying it though. It's next to the button that allows us to turn the wifi on/off. It's labeled on the board as U40. The device has printed on it, DF-J16. Here's some pictures. The front of the whole board was hard to get a good pic of. I can upload multiple pics in sections of the front if needed.

Can someone help me identify it please so I can try and find a datasheet for it? I was thinking it might be a BCW68F, package SOT-23 (we measured length and width of the chip and it seems to match the SOT-23 package size measurements).