Upload firmware to a NETGEAR router using TFTP client?

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  • #14485
    UK Sentinel
    Moderator
    • Posts 3646
    • Skipper

    I copied this from the Netgear site as a very useful reference.

    The instructions assume a basic level of networking competence. Read through the instructions below. If you do not understand them, do not attempt this without contacting NETGEAR technical support.

    Symptoms:

    • Router not booting up properly
    • Failed firmware update
    • Blinking power LED
    • Power LED is blinking/solid amber
    • Device bricked after performing a FW update

    To upload firmware using TFTP client:

    1. Download and save the router’s firmware onto the desktop of your computer. Make sure to extract the file from the zip folder. The firmware file format is either a .img or .chk file.
    2. Download and install the Tftpd64 software from: TFTP Client
      For Mac users, a free client can be downloaded here: Mac TFTP Client
    3. Connect a PC wired to the router and set it to have a static IP address (example 192.168.1.10).
      For Mac users, go to Beginner: How To Set Up A Static IP in Mac OS X and proceed to step 5.
      • Right-click the Windows start button then select Network Connections.
      • Right-click Ethernet and select Properties.
      • Double-click Internet Protocol Version 4 (TCP/IPv4).
      • Select Use the following IP address and set the IP address information like below
        • IP address => 192.168.1.10
        • Subnet mask => 255.255.255.0
        • Default Gateway => 192.168.1.1
      • Click OK to save the configuration.

    Now run the Tftpd64 software that was installed earlier and do the following:In the Server interfaces field, select the LAN adapter of your computer.

    • For Host field, enter the default router IP (usually 192.168.1.1).
    • For Port field, enter port 69 (it is the default port number for TFTP).
    • For Local File, browse to the location of the downloaded firmware file and select it. At this point,

    1. Unplug all port connections from router except this PC.
    2. Turn router OFF for 10 seconds and then turn it back ON.
    3. Watch the Power LED. It will start with an orange color and then start flashing.
    4. Press PUT button on the Tftpd64 utility to perform the firmware upload.
    5. You should see a pop up saying that “0 block retransmitted”.  If not, you may need to repeat above.

    The firmware has been successfully uploaded. You will need to wait about 4 minutes for the router to finish storing firmware into its flash memory. Once this is done, the Power LED will turn solid and the wireless LEDs are lit.

    Ref: https://kb.netgear.com/000059633/How-to-upload-firmware-to-a-NETGEAR-router-using-TFTP-client

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    In a completely sane world, madness is the only freedom (J.G.Ballard).

    #14486
    UK Sentinel
    Moderator
    • Posts 3646
    • Skipper

    As above, handy video showing Netgear not working Modem/Router/Repeater firmware update with TFTP Client software

    In a completely sane world, madness is the only freedom (J.G.Ballard).

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