NETGEAR is aware of a growing number of phone and online scams. To learn how to stay safe click here.

Forum Discussion

JimHolman's avatar
JimHolman
Aspirant
Nov 28, 2020

CBR40 Firmware file is corrupt on the website

Could someone please confirm for me the firmware file here is corrupt: https://www.netgear.com/support/product/CBR40.aspx#download    
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:

     

    Netgear does indeed use both .IMG & .CHK as valid file extensions for a firmware updates. Guess I have been around too long. CHK used to mean trouble.

    That is what it said in the page that I pointed you at and was one reason why I posted it here.

     

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

     

    The .IMG thung also throws some people who try to click it and reel back in shock when their PC sees it as a disk image.

     

    There just aren't enough three character extensions out there.

     

     

     

     

    • antinode's avatar
      antinode
      Guru
      Nov 29, 2020

      > [...] CHK used to mean trouble.

       

         Perhaps if your router were running MSDOS, then your concern might
      have been justified.  But it's not.  In the words of the philosopher
      Williams, "If you don't think too good, don't think too much."

       


      > That is what it said in the page that I pointed you at [...]

       

         And your highly decorated link is _so_ superior to the equivalent
      bare-essentials link which I had posted earlier.  Apparently you also
      skipped the link to that older thread, too.

       

      > There just aren't enough three character extensions out there.

       

         17576 (46656, if you add the digits) covers many needs, but many of
      them are not usefully suggestive.