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NOTE: Flash micro only on this router.
NOTE: Requires K2.4, Do not flash anything else.
NOTE: During configuration or flashing a device, the only that should be hooked to the device is the computer and power.
Specs
This section is in need of a few more specs!
Platform
Serial Num. = CDFK FCC ID = Released only in Europe? CPU Type = Broadcom BCM5354KFBG CK0745 P11 844285 R2A (BCM5354 rev 2 SoC) MIPS Rev = ? CPU Speed = 240MHz Bus = ? Flash Type = Parallel Flash Chip = Samsung 743 K801716UBC PI07 Flash Size = 2MB Max Firmware Size = ? RAM Size = 8MB RAM Chip = Samsung 743 K4S641632K-UC75 nvram Size = ? Switch = Broadcom BCM5354KFBG CK0745 P11 844285 R2A (BCM5354 rev 2 SoC) Port-based vlan = ? 802.1q vlan = ? Ethernet Port Count = 1-10/100-WAN 4-10/100-LAN Wired Standard = IEEE 802.3? boot_wait = ? bootloader = CFE Flash Card Socket/Type = No SD/MMC Mod Support = No MiniPCI slots = No PoE = No Power = 12V/0.5A Color of LEDs = ? Size = ? USB = No Serial Port = 2 JTAG Port = Yes Supported by TJTAG/Version = Yes/3.02 Supported by dd-wrt as of = ? dd-wrt K2.4 Support = Yes dd-wrt K2.6 Support = No Special Features = ?
Radio (wl0)
Wireless Radio = ? WLAN DSP processor = Broadcom BCM5354KFBG CK0745 P11 844285 R2A (BCM5354 rev 2 SoC) Antenna Connector Type = RP-TNC Wireless Standard = IEEE 802.11b/g WiFi Operating Frequency = 2.4GHz 802.11n Draft = up to 300Mbps 802.11g = 6, 9, 12, 18, 24, 36, 48, 54Mbps 802.11b = 1, 2, 5.5, 11Mbps Radio cor_rev = ? Radio Capabilities = ?
Links of Interest
Flashing
Files are here
- Reset the router to defaults on the Linksys Admin page, and let it reboot or manually reboot it after its finished.
- go to the firmware upgrade page and browse to the VxWorksPrep-Gv72-v1.bin file and click on the upgrade page. Wait for 30 seconds for it to reboot on its own, if it does not then powercycle the router manually.
- again go to the firmware upgrade page and browse to the VxWorksKiller-Gv72-v3.bin file and click on the upgrade page. Wait for 60 seconds for it to reboot on its own, if it does not then powercycle the router manually.
- Tftp the DD-WRT firmware to the router dd-wrt.v24_micro_generic.bin, after successful tftp, wait 3 min for the router to finish writing new nvram defaults, etc... It should reboot on it's own at least two times, so give it the three min's and then goto http://192.168.1.1
- Check for recommended builds here.
Upgrading
If dd-wrt is already on the router follow these instructions. If stock firmware is on the router follow the flashing instructions.
- Check for recommended builds here first.
- Set your computer to a static IP of 192.168.1.7. (or to whatever subnet the router is on) Disable all firewalls and security. Disable wireless on your computer and only have the router connected to the flashing computer by the ethernet cable between the two.
- Hard reset or 30/30/30 (If the router supports it, if not, reset to defults in the GUI) prior to flashing. Wait. Check for password page on re-login and change password.
- Flash firmware. You can use the webgui except if you have a belkin router. (For belkin use tftp.exe to flash)
- Wait...at least three minutes. Lights should return to normal. See important2, below. Failing to wait is how most people brick their routers.
- Do a power cycle of the router. (Unplug the cord, count to 30 and plug it back in.)
- Wait for the lights to return to normal usually about 2 minutes.
- Hard reset or 30/30/30 again (If the router supports it, if not, reset to defults in the GUI). Wait. Check for the password page and re-login to change the password. Then you can reconfigure your settings manually.
- Once configured set your computer back to autoIP and autoDNS.
Important1: This Hard reset or 30/30/30 works fine for Asus router, but you do have to power cycle after the reset.
Important2: After you flash the firmware, and before you do the hard reset, the router will be building some nvram settings. YOU MUST WAIT FOR THIS TO FINISH PRIOR TO DOING ANYTHING WITH THE ROUTER INCLUDING A HARD RESET. Usually, you can tell when this process is completed by the WAN light coming on, but it does take several minutes. Go have a beer. There are starting to be more and more people who BRICK their routers by not waiting until the nvram is rebuilt, PRIOR to doing a hard reset. YOU NEED TO WAIT!
Reverting
- Reset to defaults
- goto the Admin screen firmware upgrade, and browse to VxWorksRevert-Gv72-v3.bin and click upgrade. During this time the Web browser may say upgrade successful and to reboot -----"Do NOT REBOOT"----- Wait for 2 min's and then reboot.
- Go to http://192.168.1.1 and you should see a mgmt mode screen, this is where you browse to the original Linksys Firmware, and and upgrade.
- Wait for 1 min, even if it say's upgrade successful and to reboot, believe me, in my tests, it has not finished yet.
- go to http://192.168.1.1 - you should have the regular Linksys Firmware.
JTAG/Serial Info
JTAG
JTAG Pinouts
This section is in need of cleanup!
JTAG Recovery
This section is in need JTAG Recovery Instructions!
Serial
Serial Pinouts
This section is in need of cleanup!
Hyper terminal Setup in Windows XP
In Windows XP, Click Start Button - All Programs - Accessories - Communication - HyperTerminal Enter a name for the connection, Click ok Choose com port you adapter is plugged into, Click ok Set: Bits per second = 115200 Data Bits = 8 Parity = none Stop bits = 1 Flow control = none Click ok Click File - Save As, and select a place to save it to so you don't have to enter the settings again.
Putty Setup in Windows XP
After installing putty, run it Serial line = The COM port your using for serial (ie. COM3) Speed = 115200 Click on Serial under Connection Serial line to connect to = same as above (Serial line) Speed (baud) = 115200 Data bits = 8 Stop bits = 1 Parity = None Flow control = None Click Session Enter a name for your connection under saved sessions Click Save Click Open
Serial Recovery
This section is in need of Serial Recovery Instructions!
vlan Info
Pictures
FCC Pictures
Notes
It may be necessary to completely close and reopen the browser, it sometimes will return to a mgmt screen, if you only refresh the browser after upgrading, just close the browser and try again.