Clearing NVRAM for upgrade

Discussion in 'DD-WRT Firmware' started by hgupta, Mar 11, 2006.

  1. hgupta

    hgupta Network Guru Member

    I mounted my wrt54g high up in the attic where it is now difficult to get to. I had thought was going to have to replace it to get better signal strength until I found our about the DD-WRT software. So far I have managed to install DD-WRT mini.

    I want to install the DD-WRT standard version (so I can increase the transmission power), but I can't reach the reset button.


    1) how is the mini version limited, and can I keep running it instead of moving to the standard?

    2) is there any other way to clear the NVRAM? I really don't want to brick it, so I am trying to be cautious. Has anyone been able to upgrade to the DD-WRT standard firmware without pressing the rest button first?

    Thanks in advance!

  2. ElectricDemon

    ElectricDemon Network Guru Member

    I upgrade regularly without pressing the reset button. In fact, since I've had my WRT (about 5months) I've never pressed the reset button once. Although I have pulled the power from it, usually after an upgrade and the power LED kept flashing after 'flash successful', after which everything returns to normal. Apparently this has been fixed in the latest SP1 beta.
  3. Disman_ca

    Disman_ca Super Moderator Staff Member Member

    You can upgrade without a reset and it will work. Its always recommended to reset first to ensure any vars are cleared.

    You can telnet/ssh to the router and issue 'erase nvram' then reboot. This should load the defaults of the firmware back in.
  4. zachaller

    zachaller Network Guru Member

    there is also a way to clear using a command in telnet but i do not know right off hand.

    it might be this.

    erase nvram
  5. bluebox

    bluebox Network Guru Member

    Close, but not exactly:

    mtd erase nvram
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