Linksys WRT600N

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=Linksys WRT600N= =Linksys WRT600N=
-==Version 1.0== 
-===Pre-Build 3 Firmware=== 
-If your Version 1.0 firmware is prior to Build 3, you can simply TFTP the firmware to the router.+====Hardware Specs====
 +[https://wikidevi.com/wiki/Linksys_WRT600N_v1.0 WRT600N v1.0]: FCC ID: Q87-WRT600NV1
 +[https://wikidevi.com/wiki/Linksys_WRT600N_v1.1 WRT600N v1.1]: FCC ID: Q87-WRT600NV11
 +*CPU: Broadcom BCM4705 (300 MHz)
 +*Flash: 8 MiB
 +*RAM: 32 MiB
 +*USB 2.0 port(s): 1
 +*Wireless chip1: Broadcom BCM4321
 +*Wireless chip2: Broadcom BCM2055
 +*MIMO config: 2x3:2
 +*Antenna connectors: U.FL
-===Downgrading to Pre-Build 3 Firmware===+====Partitions====
 +CFE:
 + 0x00000000-0x00040000 : "boot"
 + 0x00040000-0x007e0000 : "linux"
 + 0x0013f430-0x007e0000 : "rootfs"
 + 0x007e0000-0x007f0000 : "factory"
 + 0x007f0000-0x00800000 : "nvram"
 +DD-WRT:
 + 0x00000000-0x00040000 : "cfe"
 + 0x00040000-0x007f0000 : "linux"
 + 0x00122000-0x00590000 : "rootfs"
 + 0x00590000-0x007f0000 : "ddwrt"
 + 0x007f0000-0x00800000 : "nvram"
 +Assuming the ''factory'' alignment is the same for v1.0 and v1.1, the size limit is 0x7F0000-0x40000 = 8060928 bytes (7872 KB).<br>
-Simply use the steps below used to downgrade from the Version 1.1's unsupported Build 5 firmware.+==Flashing==
 +'''Important:''' Read the DD-WRT [[Firmware FAQ]] and [http://www.dd-wrt.com/phpBB2/viewtopic.php?t=51486 Peacock announcement] first!
-===Flashing DD-WRT===+====Reset====
 +As always make sure to do a proper [[Hard reset or 30/30/30|hard reset]] before and after updating the firmware. This is not an optional step! Do not restore backups from a different build number or type.
-Simply use TFTP or the web utility to flash DD-WRT from stock firmware. Make sure to install the mini version first, then you can upgrade to the mega version. As usual, reset before and after each flash. '''Do not use firmware prior to v24!'''+====Flashing DD-WRT====
 +For initial flash, a trailed build is required which has header information required by the Linksys firmware.
 +*Download the [ftp://dd-wrt.com/betas/2010/08-12-10-r14929/broadcom/dd-wrt.v24_mega_wrt600n.bin 14929 WRT600N mega trailed build]
 +#Reset to factory defaults
 +#Flash it via the stock web interface
 +#Reset again after flashing
 +For upgrades, use any ''/broadcom'' folder non-micro build under 7872 KB (see [[Firmware_FAQ#Where_do_I_download_firmware.3F|''Where do I download firmware?'']])
 +*Starting with 41351, the ''broadcom_K3X_mipsel32r1'' build can be used on this device
 +*Resets are unnecessary, but reset and manually set up before reporting issues
 +*Research new build and router-specific threads before trying newer builds.
 +*If you have an issue, try clearing the web browser cache or try a different browser.
-===Reverting to Stock Firmware===+====Reverting to Stock Firmware====
 +Simply reset and flash the stock image via TFTP or through the web interface. Make sure to reset after flashing.
-Simply reset and TFTP the stock firmware to the device. You can also use the web interface, although it is not recommended for restoring stock firmware. Make sure to reset after flashing.+==Known Bugs==
 +====Initial Flash May Not Work / TFTP problems====
 +Some users may experience "Failed to Upgrade Firmware" messages when upgrading via Linksys web interface, even when using special 600N-specific builds. Also, TFTP will not work after the router has booted, and must be initiated within 1-4 seconds after power-on.
-===LEDs and Reset Button Don't Work===+==Resources==
 +* http://www.question-defense.com/2009/03/13/linksys-wrt-600n-wireless-router-upgraded-with-dd-wrt-firmware-issues/
-There is a hardware glitch with the WRT600N that can be resolved [[Broadcom detection|here]].+[[Category: Linksys]]
- +
-==Version 1.1==+
- +
-If you have a WRT600N Version 1.1 that came with the glitchy unsupported Build 5 firmware, you will need to downgrade to a firmware prior to Build 3 before installing DD-WRT. First, you have to downgrade to Build 3.+
- +
-===Be Aware Before Flashing!===+
- +
-With DD-WRT v24 Final on a WRT600N Version 1.1, the Gigabit Ethernet ports WILL NOT WORK This is because they were changed in Version 1.1! You also will lose the 300 Mbps 5 Ghz channel and the Storage Link! It is not recommended to upgrade to DD-WRT until a version specific to the WRT600N has been programmed by DD-WRT's developers!+
- +
-===Downgrading from Buggy Build 5 Firmware===+
- +
-1. Download the correct firmware from Linksys and put it on a memory stick connected to the router via USB.+
- +
-2. Go to the "Diagnostics" menu.+
- +
-3. Put this command in your browser's address bar. Code:+
- javascript:document.getElementById('Traceroute').maxLength=100;void(0);+
- +
-4. Put this command in the "Traceroute" text box. Change the <name of firmware file> to the name of your firmware .bin file. Code:+
- cd /tmp/ftproot/root;write <name of firmware file>.bin linux+
- +
-5. Put this command in your browser's address bar. Simply copy and paste. Change <ip address> to your router's IP address. Code:+
- javascript:function ValidateForm1(passForm){res=1;if (document.forms[0].Traceroute.value == "") {res=0;alert(translate_str("Diagnostics",9));document.forms[0].Traceroute.focus();return false;}if (res == 1){document.forms[0].Traceroute.value = '<ip address>;'+document.forms[0].Traceroute.value+' ';passForm.tracertstr.value = document.forms[0].Traceroute.value;setTimeout("self.open('Tracert.htm','Tracert','resizable=0,scrollbars=yes,width=800,height=480').focus();",1000);passForm.submit();}};ValidateForm1(document.forms[1]);+
- +
-6. Wait 5 minutes and reboot your router. There will be no progress bar, but don't close your browser window.+
- +
-===Downgrading to Pre-Build 3 Firmware===+
- +
-Use the same steps as above, but use the pre-build 3 firmware file instead of the build 3 firmware file.+
- +
-===Flashing DD-WRT===+
- +
-'''NOTE: Flashing DD-WRT on the WRT600N V1.1 is not recommended at this moment unless you are aware of what it will do and if you really want to.'''+
-Simply reset to factory defaults and use TFTP or the web interface to upload the firmware. Make sure to install the mini version before upgrading to the mega version. Reset before and after each flash. '''Do not use firmware prior to v24!'''+
- +
-===Reverting to Stock Firmware===+
- +
-Simply reset and TFTP the stock firmware to the device, then reset again. You can also use the web interface, although there is more potential for something to go wrong.+
- +
-==Watch Out!==+
- +
-Watch out what version and manufacture date you get with the WRT600N. Build 5 firmware isn't listed on Linksys website. The problem with this router is buggy firmware that can not be upgraded or downgraded using TFTP or using the Linksys GUI! Linksys without a problem promptly issued an RMA to replace the router. The Linksys tech mentioned that there is a problem with this router and firmware upgrades are not possible. However, as proved earlier, this is untrue. Nice one Linksys!+
- +
-From [http://forum.ncixus.com/forums/index.php?mode=showthread&forum=105&threadid=1650171&pagenumber=1&msgcount=7&subpage=1&product_id=26858 this forum].+
- +
-==Serial Number Information==+
- +
-Basically, anything that bears the serial number MNR008309xxx or above is guaranteed to be tough to deal with at this moment.+
- +
-==Discussion with Linksys Tech==+
- +
-Discussion with Linksys via live chat (14 May 2008)+
- +
- Linksys Rep: Hi, my name is <name censored>. How may I help you?+
- Martin: I have a WRT600N build 5 +
- Linksys Rep: It's good to have you Martin. What seems to be the problem?+
- Martin: I'm surprised to see build 5 isn't listed on the site - the latest firmware is build 3.+
- Martin: I have 1.01.35 build 5+
- Linksys Rep: The build 5 is for the version 1.1 WRT600N.+
- Martin: ok - so build 3 is for version 1.0?+
- Linksys Rep: Yes.+
- Martin: So I should be able to find the 1.1 build 5 on the website & I've just been looking in the wrong place?+
- Linksys Rep: No.+
- Linksys Rep: The build 5 isn't uploaded yet Martin.+
- Martin: right, that makes sense. I don't see the 1.1 listed on the dropdown on http://www-ca.linksys.com/servlet/Satellite?c=L_Content_C1&childpagename=CAen%2FLayout&cid=1153781112181&pagename=Linksys%2FCommon%2FVisitorWrapper&lid=1218111465H34&displaypage=download+
- Linksys Rep: The version 1.1 is a new hardware version for WRT600N.+
- Martin: So there are no known problems with build 5?+
- Linksys Rep: Not yet.+
- Linksys Rep: So far. :-)+
- Martin: I was reading http://forum.ncix.com/forums/index.php?mode=showthread&forum=105&threadid=1650171&pagenumber=1&product_id=26858&subpage=1+
- Martin: "Watch out what version and manufacture date you get with the WRT600N. I purchased this router a week ago and ended up with Version 1.1 build in March 2008 with firmware release 1.01.35 build 5. This firmware isn't listed on Linksys website. The problem with this router is buggy firmware that can not be upgraded or downgraded using TFTP or using the Linksys GUI!! I contacted Linksys and without much of a problem they promptly issued an RMA to replace the router. The Linksys tech mentioned that there is a problem with this router and firmware upgrades are not possible. Nice one Linksys!!! "+
- Linksys Rep: It can't be upgraded since it doesn't have a firmware update.+
- Linksys Rep: How can he downgrade it if the build firmware is the first release?+
- Martin: But it will be upgradable once there is a firmware to upgrade to?+
- Martin: He probably wants to run DD-WRT. +
- Linksys Rep: Yes it is.+
- Linksys Rep: That's the problem.+
- Martin: what's the problem?+
- Linksys Rep: Our new routers can't be loaded with DD-WRT unlike our old routers.+
- Martin: whyever not? +
- Linksys Rep: The RAM for the newer routers is not enough to accommodate the DD-WRT.+
- Martin: there's less ram in a 600N than a 54G?+
- Linksys Rep: Yes.+
- Martin: I think some people have got DDWRT on the 600N already+
- Martin: But it is buggy still - e.g. the gigabit ports don't yet work+
- Linksys Rep: We are preventing third party firmware to be loaded on the router.+
- Linksys Rep: Aside from that, it voids the warranty once third party firmware is loaded on the router.+
- Linksys Rep: That I don't know.+
- Linksys Rep: They are genius if they've done that.+
- Martin: I've always bought Linksys stuff because I had the option to run alternative firmware+
- Linksys Rep: I understand.+
- Martin: As long as you could replace the alternate firmware with a stock linksys one I don't see why Linksys should lock the hardware+
- Linksys Rep: I don't know the reason behind Martin. Our Product Engineers designed the router.+
- Martin: They'll lose the influential customers - we end up doing tech support for everyone in our families+
- Linksys Rep: You're right. I understand that.+
- Martin: Anyhow, seems like the 1.1 build 5 should be listed on the Linksys site.+
- Martin: otherwise misinformation spreads+
- Linksys Rep: It will be soon Martin.+
- Linksys Rep: Just keep posted on our website for any updates.+
- Martin: Is there an RSS feed for the updates?+
- Linksys Rep: As of this writing, no not yet.+
- Martin: Funnily enough, if Linksys are blocking firmware updates I'll probably never take them. Instead I'll stay on build 5 and switch to DDWRT as soon as they've stabilised it.+
- Linksys Rep: That's a good idea Martin. But please be aware that it voids the warranty once the DD-WRT is loaded on the router.+
- Martin: Well, a 1 yr warrantee is better than nothing. MIght take that long for them to get DDWRT stable I suppose!+
- Linksys Rep: Okay.+
- Linksys Rep: Is there anything else that I can assist you with?+
- Martin: The uncertainty about whether future versions will be flashable with alternate 3rd party firmwares will mean I will think very carefully before recommending the Linksys line to friends who will follow. They'd have to know which firmware it came with. The staff at the shop I bought it at didn't know about this one even, so I used the serial number heuristic.+
- Martin: You can take my comments back, I guess.+
- Martin: Thanks for your help. Its been some peace of mind.+
- Linksys Rep: You're welcome.+

Revision as of 20:30, 18 October 2019

Contents

Linksys WRT600N

Hardware Specs

WRT600N v1.0: FCC ID: Q87-WRT600NV1 WRT600N v1.1: FCC ID: Q87-WRT600NV11

  • CPU: Broadcom BCM4705 (300 MHz)
  • Flash: 8 MiB
  • RAM: 32 MiB
  • USB 2.0 port(s): 1
  • Wireless chip1: Broadcom BCM4321
  • Wireless chip2: Broadcom BCM2055
  • MIMO config: 2x3:2
  • Antenna connectors: U.FL

Partitions

CFE:

0x00000000-0x00040000 : "boot"
0x00040000-0x007e0000 : "linux"
0x0013f430-0x007e0000 : "rootfs"
0x007e0000-0x007f0000 : "factory"
0x007f0000-0x00800000 : "nvram" 

DD-WRT:

0x00000000-0x00040000 : "cfe"
0x00040000-0x007f0000 : "linux"
0x00122000-0x00590000 : "rootfs"
0x00590000-0x007f0000 : "ddwrt" 
0x007f0000-0x00800000 : "nvram"

Assuming the factory alignment is the same for v1.0 and v1.1, the size limit is 0x7F0000-0x40000 = 8060928 bytes (7872 KB).

Flashing

Important: Read the DD-WRT Firmware FAQ and Peacock announcement first!

Reset

As always make sure to do a proper hard reset before and after updating the firmware. This is not an optional step! Do not restore backups from a different build number or type.

Flashing DD-WRT

For initial flash, a trailed build is required which has header information required by the Linksys firmware.

  1. Reset to factory defaults
  2. Flash it via the stock web interface
  3. Reset again after flashing

For upgrades, use any /broadcom folder non-micro build under 7872 KB (see Where do I download firmware?)

  • Starting with 41351, the broadcom_K3X_mipsel32r1 build can be used on this device
  • Resets are unnecessary, but reset and manually set up before reporting issues
  • Research new build and router-specific threads before trying newer builds.
  • If you have an issue, try clearing the web browser cache or try a different browser.

Reverting to Stock Firmware

Simply reset and flash the stock image via TFTP or through the web interface. Make sure to reset after flashing.

Known Bugs

Initial Flash May Not Work / TFTP problems

Some users may experience "Failed to Upgrade Firmware" messages when upgrading via Linksys web interface, even when using special 600N-specific builds. Also, TFTP will not work after the router has booted, and must be initiated within 1-4 seconds after power-on.

Resources