At 1:17 you point out a shielded can (with a large heat sink). Inside the can there's an RF power amp chip. Mine, a WRT54G V.6, has a SIGe 2528L (16 pins). This is the device that overheats when driven over 70 mw and it needs to have a heat sink directly on it.
To find the RF amp chip, follow the PC board trace from the antennas into the shielded can. Gently pry the two tin tabs on the lid straight up and lift the lid. Look for a 16 pin chip that is connected to the antennas.
Currently doing some research about cooling down these things. That's how I found this video.
So I finally found a weakness in these routers, well in my WRT54GL at least. Turns out the WAN at 200mhz is limited to 21.6Mbit. Which sucks if you are using a faster internet line. Myself I have cable that is 25Mbit. Anyway, overclocking the cpu to 250 gave me benchmark results in the 28.6Mbit range. It's just not stable due to heat issues.
@kmi187 My idea so far was to use adhesive thermal paste to slap on some zalman chipset coolers I never used, then make a hole in the top, glue a 80mm to 120mm fan duct I also have laying around to the case and mount a 120mm fan. And steal 12 volts somewhere :)
This should be enough to keep it cool , I hope. Do you have any Idea if you can get passed 250 mhz with these broadcom cpu's ad DD-wrt ?
@kmi187 Even if you can keep the CPU nice and cool, you are still using a device that is essentially 8 years old lol. But I've gotten almost 50Mbits on my WRT54G before with overclocking to insane speeds... But it aint stable O.O My fiber connection to my house is 65Mbits now and I use my server to handle routing now so I don't have any speed issues anymore. Plus a Cisco AP to push my wifi separately.
@steelraptor That's essentially what's running over here now as well, I've since upgraded to 100mbit fiber. Atom based mini ITX system with and Intel Dualport pci-x nic. Ran DD-WRT x86 for a while, now it's running a full on ubuntu distro configured as router. Currently only wired, but an cisco AP is on the way.
Could have used old hardware for it, but wanted low noise/low power.
It'll take some time before an upgrade is required :)
No way that fan draws enough to do that. It draws maybe 5 watts max. Also the router isn't using that much more juice to amp the signal out. Plus if it does burn out so what? They are dime a dozen lol
hi! does anyone know how to debrick a Linksys router? please post a video about it!
I already got a Jtag cable, and soldered it to the router mainboard, the next step is plug to a pc through the parallel port, I dont know to manage commands in order to flash Nvram and kernell! help !
Heat sinks well you can just grab a pc one laying around and chop it up and just glue it down. Doesnt have to be a perfect thermal transfer, it gets the job done.
very cool video, I'm trying to understand how to debrick my wrt54g v6, a blinking power light (bad bootloader according to dd wrt site). I'm going to take your video as a starting point to do some mods later. make a debricking jtag video ( including how to actually connect the jtag to the board, I haven't found a place that just straight tells you with visuals, they mention soldering like its no big deal, but Im new to that business so it is).
Well once i get home for a few days from school i am going to get a few JTAG cables, they make solderless one too btw. I will make a video of the debricking process once I get it all ready
@steelraptor, bull shit , pls sow some images properly, when u speak
gadzetden 4 months ago
@gadzetden What? WTF are you talking about? You make no sense...
steelraptor 4 months ago
At 1:17 you point out a shielded can (with a large heat sink). Inside the can there's an RF power amp chip. Mine, a WRT54G V.6, has a SIGe 2528L (16 pins). This is the device that overheats when driven over 70 mw and it needs to have a heat sink directly on it.
To find the RF amp chip, follow the PC board trace from the antennas into the shielded can. Gently pry the two tin tabs on the lid straight up and lift the lid. Look for a 16 pin chip that is connected to the antennas.
2n107 9 months ago
Currently doing some research about cooling down these things. That's how I found this video.
So I finally found a weakness in these routers, well in my WRT54GL at least. Turns out the WAN at 200mhz is limited to 21.6Mbit. Which sucks if you are using a faster internet line. Myself I have cable that is 25Mbit. Anyway, overclocking the cpu to 250 gave me benchmark results in the 28.6Mbit range. It's just not stable due to heat issues.
kmi187 1 year ago
@kmi187 My idea so far was to use adhesive thermal paste to slap on some zalman chipset coolers I never used, then make a hole in the top, glue a 80mm to 120mm fan duct I also have laying around to the case and mount a 120mm fan. And steal 12 volts somewhere :)
This should be enough to keep it cool , I hope. Do you have any Idea if you can get passed 250 mhz with these broadcom cpu's ad DD-wrt ?
kmi187 1 year ago
@kmi187 Even if you can keep the CPU nice and cool, you are still using a device that is essentially 8 years old lol. But I've gotten almost 50Mbits on my WRT54G before with overclocking to insane speeds... But it aint stable O.O My fiber connection to my house is 65Mbits now and I use my server to handle routing now so I don't have any speed issues anymore. Plus a Cisco AP to push my wifi separately.
steelraptor 4 months ago
@steelraptor That's essentially what's running over here now as well, I've since upgraded to 100mbit fiber. Atom based mini ITX system with and Intel Dualport pci-x nic. Ran DD-WRT x86 for a while, now it's running a full on ubuntu distro configured as router. Currently only wired, but an cisco AP is on the way.
Could have used old hardware for it, but wanted low noise/low power.
It'll take some time before an upgrade is required :)
kmi187 4 months ago
with these mods, won't you be drawing too much power the AC adapter can handle and ultimately it will overheat and blow?
loll69 2 years ago
No way that fan draws enough to do that. It draws maybe 5 watts max. Also the router isn't using that much more juice to amp the signal out. Plus if it does burn out so what? They are dime a dozen lol
steelraptor 2 years ago
@steelraptor The G version 2s are getting somewhat harder to find now though.
icemachine79 1 year ago
Nice job, 5 star 15 V Muti-metro
Shark2brazilian 2 years ago
Great video. 5 stars. Thank you for posting.
vbpeepee 2 years ago
Some of the WRT's have small screws under the feet in the front - pop the feet out and look before you try to remove the front cover
rhblakeman 2 years ago
hi! does anyone know how to debrick a Linksys router? please post a video about it!
I already got a Jtag cable, and soldered it to the router mainboard, the next step is plug to a pc through the parallel port, I dont know to manage commands in order to flash Nvram and kernell! help !
mickype 2 years ago
I have the same issue, if you have any info please post it. Also where cani buy a heat sink to fit this?
nervouss 2 years ago
Heat sinks well you can just grab a pc one laying around and chop it up and just glue it down. Doesnt have to be a perfect thermal transfer, it gets the job done.
steelraptor 2 years ago
ehhh I still gotta get my jtag I have 4 wrt54g's laying around now, gotta get to debricking them this summer.
steelraptor 2 years ago
i bricked a WRT54GS with DD-WRT tried to debrick with 2 command window trick & nada.
rozMexicano13 2 years ago
very cool video, I'm trying to understand how to debrick my wrt54g v6, a blinking power light (bad bootloader according to dd wrt site). I'm going to take your video as a starting point to do some mods later. make a debricking jtag video ( including how to actually connect the jtag to the board, I haven't found a place that just straight tells you with visuals, they mention soldering like its no big deal, but Im new to that business so it is).
selfalready 3 years ago
Well once i get home for a few days from school i am going to get a few JTAG cables, they make solderless one too btw. I will make a video of the debricking process once I get it all ready
steelraptor 3 years ago
please, I`d really appreciate you if you made a video about Debricking a Linksys router by using a Jtag!
mickype 2 years ago