TFTP Flashing a Belkin F5D7230

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TFTP Flashing a Belkin F5D7230-4v1000

First, review the basic instructions at TFTP_flash.

Second, note that the following is only confirmed to apply to the F5D7230 v1000. This model has 4MB of flash memory, and consequently it can support DD-WRT mini. Later models have 2MB of flash, and can only support DD-WRT micro.

The TFTP server is only available very briefly during the F5D7230's boot process. It can be frustrating to find the appropriate time at which to start the TFTP process. If you start the transfer at the wrong moment, you will receive a timeout error rather than a confirmation message stating the transfer was successful.

To reliably begin a TFTP transfer at the right time:

  • Hold down the reset button until the router's LAN status LEDs turn off, then flash all green
  • The router LAN status LEDs will then change to all amber
  • The router LAN status LEDs will then briefly go off -- this is the point at which you should initiate the TFTP transfer
  • If at first you don't succeed, try, try again. It took me dozens of attempts to identify this point in the boot process.

I successfully flashed the v1000 using dd-wrt.v24_generic-8184.bin:

http://dd-wrt.com/phpBB2/download.php?id=3149

Courtesy of Eko in http://dd-wrt.com/phpBB2/viewtopic.php?t=21819&postdays=0&postorder=asc&highlight=f5d72314&start=0&sid=a12584bf2beb6c992f0cde6a0dcc7db4

This was after an unsuccessful attempt to use dd-wrt.v24_mini_generic.bin (it did not brick, just reset the stock firmware to factory defaults).