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Forum Discussion

6 Replies

  • antinode's avatar
    antinode
    Guru
    Nov 28, 2020

    > Could someone please confirm for me the firmware file here is corrupt:
    > [...]

     

       I doubt it.  _Which_ "the firmware file" there?  What did you do with
    it?  "CBR40-V2.5.0.14.zip" looks fine to me:

    $ unzip -l CBR40-V2.5.0.14.zip
Archive:  CBR40-V2.5.0.14.zip
  Length      Date    Time    Name
---------  ---------- -----   ----
 40119162  10-23-2020 03:29   CBR40-V2.5.0.14.chk
      809  10-23-2020 03:38   CBR40-V2.5.0.1_Release_Notes.html
---------                     -------
 40119971                     2 files

       Perhaps it would help if you revealed how you came to that
    conclusion.

     

       "corrupt" is not a useful problem description.  It does not say what
    you did.  It does not say what happened when you did it.  As usual,
    showing actual actions (commands) with their actual results (error
    messages, LED indicators, ...) can be more helpful than vague
    descriptions or interpretations.

     

          https://community.netgear.com/t5/x/x/m-p/1721037#M124018

     

       Visit http://netgear.com/support , put in your model number, and look
    for Downloads.  (For older versions, under Firmware and Software
    Downloads, look for "View Previous Versions".)  Find the kit(s).
    Download the kit(s) you want.  Read the "Release Notes" file for
    instructions.  (In the User Manual, look for "firmware", and,
    especially, for a topic like "Manually Upload Firmware to the Router".)
    When that fails because of a deficient User Manual, try:


          https://kb.netgear.com/23960
          https://kb.netgear.com/31573

    • JimHolman's avatar
      JimHolman
      Aspirant
      Nov 29, 2020

      Twice earlier yesterday I downloaded new firmware for my RBR50 & RBS50. The downloaded zip files contained .IMG files which worked perfectly to update the 2 units firmware. As you note the downloaded zip for the CBR40 contains a .CHK file. In the old DOS days that indicated a bad checksum in the file. Are you suggesting that the CHK file can be used to update a firmware?

  • michaelkenward's avatar
    michaelkenward
    Guru - Experienced User
    Nov 29, 2020
    JimHolman wrote:

    Could someone please confirm for me the firmware file here is corrupt:

    https://www.netgear.com/support/product/CBR40.aspx#download

     

    What suggests that this is the case?

     

    Start with a description of what is going on at your end rather than with you thinking in why it happens.

     

    This might be useful:

     

    How do I manually upgrade firmware to my NETGEAR router? | Answer | NETGEAR Support

     

    It describes steps that you may have missed out.


    You might get more help, and find earlier questions and answers about your hardware, in the appropriate section for your device. That's probably here:

    Orbi - NETGEAR Communities