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Linksys WRT54G v7.2
Linksys WRT54G

Homepage

WRT54G

Wikipedia

Linksys WRT54G

dd-wrt

Linksys WRT54G v7.2

OpenWRT

Not for 2MB Devices

Tomato

Not for 2MB Devices

TomatoUSB

Not for 2MB Devices

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

Fixme 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

WRT54G v7.2

  1. Reset the router to defaults on the Linksys Admin page, and let it reboot or manually reboot it after its finished.
  2. 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.
  3. 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.
  4. 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
  5. 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.

  1. Check for recommended builds here first.
  2. 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.
  3. 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.
  4. Flash firmware. You can use the webgui except if you have a belkin router. (For belkin use tftp.exe to flash)
  5. Wait...at least three minutes. Lights should return to normal. See important2, below. Failing to wait is how most people brick their routers.
  6. Do a power cycle of the router. (Unplug the cord, count to 30 and plug it back in.)
  7. Wait for the lights to return to normal usually about 2 minutes.
  8. 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.
  9. 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

  1. Reset to defaults
  2. 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.
  3. 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.
  4. Wait for 1 min, even if it say's upgrade successful and to reboot, believe me, in my tests, it has not finished yet.
  5. go to http://192.168.1.1 - you should have the regular Linksys Firmware.

JTAG/Serial Info

JTAG

JTAG Pinouts
Fixme This section is in need of cleanup!
JTAG Recovery
Fixme This section is in need JTAG Recovery Instructions!

Serial

Serial Pinouts
Fixme 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
Fixme This section is in need of Serial Recovery Instructions!

vlan Info

Fixme This section is in need of cleanup!

Pictures

Linksys WRT54G v7.2b

FCC Pictures

Fixme This section is in need of cleanup!

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.

Hardware Modification

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