Linksys WRT54G2 v1.0

From DD-WRT Wiki

(Difference between revisions)
Jump to: navigation, search
Revision as of 08:09, 9 February 2009 (edit)
Alexk (Talk | contribs)
(Unbricking WRT54G2 - - added link to wholeflash by redhawk0)
← Previous diff
Revision as of 08:15, 9 February 2009 (edit) (undo)
Alexk (Talk | contribs)
(Unbricking WRT54G2 - - link to bug tracker)
Next diff →
Line 63: Line 63:
* Then use Tjtagv2 program to unbrick your router. EJTAG De-Brick tool: http://www.dd-wrt.com/phpBB2/viewtopic.php?t=22655 * Then use Tjtagv2 program to unbrick your router. EJTAG De-Brick tool: http://www.dd-wrt.com/phpBB2/viewtopic.php?t=22655
* Use Tjtagv2 to upload WRT54G2 "wholeflash" image from [http://www.dd-wrt.com/phpBB2/viewtopic.php?p=246999#246999 here] * Use Tjtagv2 to upload WRT54G2 "wholeflash" image from [http://www.dd-wrt.com/phpBB2/viewtopic.php?p=246999#246999 here]
 +
 +=== Reportin a bug in dd-wrt ===
 +If you found some bug in dd-wrt:
 +* Check it is not already reported [http://svn.dd-wrt.com:8000/dd-wrt/timeline here]
 +* Report the bug [http://svn.dd-wrt.com:8000/dd-wrt/register here]
== Credits == == Credits ==

Revision as of 08:15, 9 February 2009

Process developed by Eko
Wiki created by Doramius

Linksys WRT54G2 Flash Instructions

A big thanks to Eko for making this available.

Contents


Things to know about WRT54G2

Unlike classic WRT54 versions, It is not possible to upgrade directly via stock Linksys web interface. WRT54G2 runs vxworks-based firmware and requires a special procedure outlined below. (Once dd-wrt is installed, other dd-wrt versions can be flashed from the web interface, as usual).

Supported firmware versions: It is possible to flash either Micro or Micro-plus or micro-plus_ssh versions. For description of Micro features, see this feature matrix.

Version must be marked as NEWD, not VINT (some images do not have the NEWD/VINT distinction-- these are NEWD). Once you have Micro, it is possible to update to Micro-plus or micro-plus_ssh build via the web gui, as usual. NB: Mini is not the same as micro. Mini versions are not compatible and may brick the router.

Software Tools Required

- VxWorksPrep-G2V1
- VxWorksKiller-G2V1
- Linksys tftp.exe
- dd-wrt.v24-10709_NEWD_micro.bin - (Always recommended to check for newer versions available here)

Flash Process

  1. install Linksys tftp.exe, set your PC to static IP, 192.168.1.10.
  2. Reset the router to defaults on the Linksys Admin page, and let it reboot or manually reboot it after it is finished.
  3. Set your computer to a static IP address of 192.168.1.10 and 255.255.255.0 for a mask and plug Ethernet cable into LAN port of the G2v1 unit.
  4. Close all browser windows. Start the Linksys's tftp.exe utility, set IP to 192.168.1.1 and browse to the VxWorksPrep-G2V1.bin file; enter password = admin, and click Upgrade. Wait 60 seconds for it to reboot on its own. If it does not, then power cycle the router manually. Important: even if your tftp is not working properly, do not resort to upload via web interface. Yes, you can upload vxworksprep via Linksys web interface, but you will stuck on the next step (vxworkskiller) which only works with tftp. See TFTP troubleshooting below.
  5. DO NOT open any browser windows. Again, start Linksys's tftp.exe utility and browse to the VxWorksKiller-G2V1.bin file; enter password = admin, and click Upgrade. Wait 2 min for it to reboot on its own. If it does not, then power cycle the router manually. Note: normal tftp doesn't work, this step requires a tftp utility supporting password authentication.
  6. Tftp the DD-WRT firmware to the router, using "dd-wrt.v24-10709_NEWD_micro.bin or dd-wrt.v24-10709_NEWD_micro-plus.bin" (or latest version) from the folder where you got these instructions; 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 3 min and then open a browser and type 192.168.1.1 in the address field. If it does not reboot on its own, wait another 1 min, and then power cycle it.
  7. When it finishes booting....do a hard reset (30/30/30) on the unit....let it boot again, and configure.
  8. Do not forget to set your computer back to automatically obtaining DHCP and DNS.

Notes

  • It may be necessary to completely close and reopen the browser, it sometimes will return

to a management screen, if you only refresh the browser after upgrading. Just close the browser and try again.

  • WARNING: It is currently not possible to restore Linksys firmware after DD-WRT has been flashed. The only possibility is a full JTAG backup.


See this forum thread for more information about dd-wrt on WRT54G2.


Troubleshooting

TFTP troubleshooting

  • tftp.exe and tftp2.exe seem to have a problem working through Vista. Several users have complained of connection problems using Vista. However, tftp.exe and tftp2.exe seem to work well in XP. Try using another tftp program that allows a password or set the password to blank and use the Vista command line tftp program.
  • If you cannot use Linksys tftp and must use standard tftp that does not take password, there is a workaround from Eko: Login to the linksys and set the password to be empty (no characters at all). Save and exit the router. Then you can uses command line tftp without password. Alternatively, you can use this tool: http://www.dd-wrt.com/dd-wrtv2/downloads/others/tornado/Linux_Linksys_Tftp/linksys-tftp.tar.bz2


Unbricking WRT54G2

If your router is bricked, follow instruction by Shawn360:

  • You need to make a jtag cable or buy one from eBay jtag cable Linksys. You have to install a simple pin header like this. Soldering is not hard, but if you don't want to solder you can use something like Wire Glue from http://www.wireglue.us/, the cheapest of these type of glues. Just put it on let it dry no soldering.
  • Then use Tjtagv2 program to unbrick your router. EJTAG De-Brick tool: http://www.dd-wrt.com/phpBB2/viewtopic.php?t=22655
  • Use Tjtagv2 to upload WRT54G2 "wholeflash" image from here

Reportin a bug in dd-wrt

If you found some bug in dd-wrt:

  • Check it is not already reported here
  • Report the bug here

Credits

Tornado and redhawk0 for their help.
Thx to Ick & gfunk911 for donating routers.

Links

Forum Reference: http://www.dd-wrt.com/phpBB2/viewtopic.php?t=40142&postdays=0&postorder=asc&start=0