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Simarti28's avatar
Simarti28
Aspirant
Jul 01, 2016
Solved

R6400 Failed Firmware Update-Corrupt

I have a R6400 AC1750 router. While attempting to update to the latest firmware version, the update failed. Now my routers internet light constantly flashes amber and the power light doesn't come on, the router is clearly powered on. Also, my internet works if plugged directly in to the modem. I have tried the power down procedure and I've tried the factory reset button, neither worked. I have also tried installing the firmware using tfpt,but can't get the .chk file unzipped. I tried using various .chk unzipping programs such as CHK-mate and Express Zip, but the programs do not recognize the firmware file which was downloaded directly from netgear.com. Can someone shine some light on this situation? Please help, thank you!
Firmware
Troubleshooting
  • Simarti28's avatar
    Simarti28
    Jul 09, 2016
    I contacted Netgear support to get a RMA # so I could get a warranty replacement. Before receiving my RMA #, the support agent had me troubleshoot several different ways in an attempt to communicate with the router. After about 1 hour on the phone I got the RMA and now have a warranty replacement in my possession. Just a FYI, the troubleshooting was free of charge and I only had to pay shipping cost for the replacement, $17 for advanced shipping method, this covers shipment to you and shipping of the defective unit back to them.

13 Replies

  • DexterJB's avatar
    DexterJB
    NETGEAR Moderator
    Jul 03, 2016

    Hi Simarti28,

     

    There is no need for you to unzip the .chk file since that will be the firmware itself. Just make sure you have downloaded the correct firmware version for the specific router model. You may refer to the link below for the steps on how to perform TFTP.

     

    Regards,

     

    Dexter

    Community Team

    • Simarti28's avatar
      Simarti28
      Aspirant
      Jul 04, 2016

      Thanks for your reply DexterJB, I didn't see a link below in you response. Can you resend it please and I'll give it a try. 

       

      Thanks again!

    • Simarti28's avatar
      Simarti28
      Aspirant
      Jul 04, 2016

      DexterJB, I forgot to ask.....when I'm updating the router manually do I connect the Ethernet cord from my PC to a LAN port or the WAN port on the router? Also, does my PC need to be connected to the Internet at that time?

       

      Thanks,

      Simon

      • VE6CGX's avatar
        VE6CGX
        Master
        Jul 04, 2016

        First of all what caused your router bricked? Did you get any error message? Was doing it on wireless connection? Or you did something stupid to the router B4 updating finished? In a situation like this, first thing you should do is to figure out what state router is in.Disconnect everything from router except one LAN connection to your PC, then see if you can access the router, if not run 'ipconfig'

        command to see what gateway ip address is. ttfp needs precondition for the router, it does not work no matter what the router status is.

        You trying to update again? Then your router is accessible?

  • Simarti28's avatar
    Simarti28
    Aspirant
    Jul 09, 2016
    I contacted Netgear support to get a RMA # so I could get a warranty replacement. Before receiving my RMA #, the support agent had me troubleshoot several different ways in an attempt to communicate with the router. After about 1 hour on the phone I got the RMA and now have a warranty replacement in my possession. Just a FYI, the troubleshooting was free of charge and I only had to pay shipping cost for the replacement, $17 for advanced shipping method, this covers shipment to you and shipping of the defective unit back to them.