Unbrick my router by upgrade firmware

You have accomplished what is known as "bricking" your device. If anything interrupts a firmware update, in most cases the equipment will be unable to recover from it. It will require factory servicing to reestablish the firmware. It is usually cheaper to buy a new device. Remember this about firmware upgrades - just because one is available does not mean you should upgrade. Many devices will work forever without them. Unless you are in a situation where changing requirements of your equipment and/or providers means an upgrade MUST be performed, the best rule is "if it isn't broken, don't fix it!"

sounds like your router is bricked.
you can try unbrick it by downloading the latest firmware from linksys.com
if your running win xp you can tftp the firmware to your router.
first you need to set your computer to a static ip address
192.168.1.5 subnet mask 255.255.255.0
then go to start run.
type cmd and hit enter
a black window should appear
you should be able to ping the router. type
ping 192.168.1.1
if it returns successful then do the following. if it doesn't change your network settings and make sure u got a static ip.
unzip the firmware you downloaded to drive c
type
tftp -i 192.168.1.1 put C:\nameoflinksysfirmware.bin
hit enter
it should say successfully uploaded if it works. go ahead and power off the router and power it back on.
if that doesn't work try uploading it again.

Checking the Router's LEDs

The Linksys router's front panel will indicate the status of the connection. After connecting the broadband modem to the WAN or Internet port, the computer to an available numbered port and powering on the router check the lights on the front panel of the router.

The Linksys router's front panel will indicate the status of the connection. After connecting the broadband modem to the WAN or Internet port, the computer to an available numbered port and powering on the router, the following should be lit:

• 1 - 8 (LAN)
• DMZ/Internet (WAN2)
• Internet (WAN1)
• Diag
• System

Checking the Router's LEDs
Step 1:
Make sure the System LED is lit.

NOTE: If the Diag LED doesn't goes off, you need to upgrade the router's firmware. For instructions, click here .

Step 2:
Make sure the LAN 1-8 ports is lit depending on the computers connected to the designated Ethernet port.

NOTE: If the LAN 1-8 port is not lit, make sure that the computer is powered on. You can also try connecting the PC using another working cable.

Step 3:
Make sure the Internet (WAN1) and DMZ/Internet (WAN2) LED is lit.
NOTE: If the Internet or DMZ/Internet LED is not lit make sure the Broadband modem is powered on and that the modem is properly connected to the Ethernet port

You can access the web-based user interface utility of the RV082 by using one of two methods:

• Through the RV082 IP address (192.168.1.1 by default), or
• Through its default hostname ("RV082")

1. Open a web browser (Internet Explorer or Netscape Navigator)

· By IP address: Type http://192.168.1.1 (192.168.1.1 is the default IP address of the RV082)

and click Go or press the [Enter] key.

· By Hostname: Type http://RV082 and click Go or press the [Enter] key.

2. When the username and password prompt appears, type admin in both the username and password fields. (admin is both the default username and default password for the RV082).

Check this tip out from Linksys. It is for a G VPN Router but you could use the same steps to troubleshoot. Title: Resolving Blinking Power or Diag LED on a Linksys Wireless-G VPN Router Article ID: 4982 If the Power LED on your Linksys router is blinking, this means the device is not ready. It should go off once the router completes its diagnostic test. If the Power LED won?t go off, it indicates that there?s a possible hardware problem with the router. To resolve this, you will need to perform five steps: Resetting the Router Assigning Static IP to the Computer Pinging the Router Accessing the Router?s Web-based Setup Page Updating the Router?s Firmware For instructions on how to reset the router, follow the steps below. Resetting the Router Hold in the RESET button at the back of the router for 30 seconds. Unplug the power to the router then plug it back in. If after resetting the router and the Power LED is still blinking, try resetting the router again for another 30 seconds. Then proceed with assigning a static IP address on the PC. For instructions, follow the steps below. Assigning a Static IP Address on Your Computer Most of the time, if the power LED on the router is blinking it loses its ability to assign IP addresses to the PCs connected to it, which is why you need to assign the computer a static IP address. After assigning a static IP address on the computer, check if the computer is still communicating to the router by performing a ping test. To ping the router, follow the steps below. Pinging the Router Ping test helps trace the communication between the computer and the router. The computer sends packets to the router and in return the router sends out replies to validate the connection. In this example, our router IP address is 192.168.1.1. NOTE: If you?re using Windows 98 or ME, click here. Windows 2000/XP Step 1: Click Start, then Run. Step 2: When the Run window opens, type ?cmd? in the Open field, then click OK. Step 3: When the MS DOS Prompt appears, type ?ping 192.168.1.1? and press [Enter]. Step 4: Check the ping statistics. You should get Packets: Sent =4, Received =4, Lost = 0 (0% loss). NOTE: If you?re not getting good replies from the router, it means the router is not communicating properly with the computer anymore. You can already consider the device defective. Windows 98/ME Step 1: Click Start, then Run. A window similar to Step 2 will appear. Step 2: When the Run window appears, type ?command? in the Open field, then click OK. Step 3: When the MS DOS Prompt appears, type ?ping 192.168.1.1? and press [Enter]. Step 4: Check the ping statistics. You should get Packets: Sent =4, Received =4, Lost = 0 (0% loss). NOTE: If you?re not getting good replies from the router, it means the router is not communicating properly with the computer anymore. You can already consider the device defective. If you get good responses from the router, access the router?s web-based setup page to see if a firmware update is possible. For instructions, follow the steps below. Accessing the Router?s Web-based Setup Page In order to perform a firmware update, you should be able to access the router?s web-based setup page. Updating the firmware is one way of resolving the blinking power light on the Linksys router. To access the router?s web-based setup page, click here. NOTE: If you?re having difficulties accessing the router?s web-based setup page, the router is considered defective. If you?re able to access the router?s web-based setup page, proceed in updating the firmware upgrade.

Linksys Red Diag or Power Light Blinking on the WRT54G

The above are instructions directly from Linksys.

you will need to buy or get a pandoras battery to be able to downgrade or reload the firmware of the psp to unbrick it.

there are guides posted online if you google, videos aswell.

hello!

blinking power light after firmware upgrade sometimes indicates that the upgrade is not sucessful or the firmware that you load is incorrect.

-- try to reset the router for 30secs and check if the power light is still blinking
-- if its still blinking check your pc's ip address while connected to the router
-- if the ip address of your pc is invalid (169.x.x.x.) turn to manually assign static ip address to your computer and check if you can ping your routers ip address
-- if you can ping the routers ip address, upload the correct firmware to your router
-- if you cant ping your routers ip address still, reset the router again and try to ping the routers ip address once again
-- try to change port and cables
-- if still unable to ping the routers ip address, chances are that the router might be defective now

you did not specify where the wap is connected when you pinged it. Try this, connect the wap54g to your pc. Assign static ip 192.168.1.5 on the lan of the pc, then ping 192.168.1.245. if you can ping you should be able to access the configuration page. if the power is still blinking you can upgrade the firmware

http://www.dlink.com/

Click Support

Click United States

Click Product Information

Click here (between the gray and blue bars at the top)

Under Broadband, Under Routers, Click DI-624

Use the pictures to Choose the correct revision matching the label on the bottom of the router.

Note the international DI-624+ model near the top without a picture

If not international choose A, B, C, D, E
Click on picture that matches

The resulting page contains the manual, quick start guide, firmware, how-tos, etc

I know this is going to sound stupid, but what I want you to do is to press and hold the reset button until the unit reboots. The try to communicate with it. What you may have done if overwritten your primary software load. so what yo may have to do is try to get to the default software or the "bios" of this unit. I am almost certain that you corrupted that too but it is worth a try. You may end up buying a new unit if all of this fails. Here are some links that might help: http://nino.net/blogs/nino/archive/2005/06/09/744.aspx http://www.barik.net/archive/2004/12/03/220751/