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How to flash Asus RT-N66U to Tomato

Discussion in 'Tomato Firmware' started by jsmiddleton4, Dec 2, 2012.

  1. jsmiddleton4

    jsmiddleton4 Network Guru Member

    I've searched and have found several posts about doing this. However I am confused. My apologies.

    The threads end up talking about CFE updaters, etc., or all kinds of other things.

    Is there a version of Toastman's releases that support the Asus RT-N66U?

    Which?

    How do you update this router?
     
  2. Washu-Chan

    Washu-Chan Networkin' Nut Member

  3. jsmiddleton4

    jsmiddleton4 Network Guru Member

    So they've fixed the stock firmware to recognize what had to have already been in the hardware yes? Firmware couldn't add what isn't there physically.

    While helpful that article appears old. As best I recall dual band is now working on the 53U yes?

    So if you have an RT-N66U

    1. Flash to the latest stock firmware from Asus.

    Then what?

    Download which version?

    Install it how? Via regular upate, etc.?
     
  4. digiblur

    digiblur Networkin' Nut Member

    I just went straight to shibbys build for the 66u using the recovery method. Works great.

    Sent from a little old Note 2
     
  5. jsmiddleton4

    jsmiddleton4 Network Guru Member

    That is why I'm asking. Too many different directions.

    For those of us who are picking up these 66U's I'm thinking we'd like some directions that will minimize our snarfing the router.
     
  6. pharma

    pharma Network Guru Member

    I flashed mine directly to Toastman from Asus stock without issues after setting stock settings to default. I think all Tomato modders have versions for the K26 64kb Nvram models. BTW ... initially I flashed mine to the 60kb version. It was only later I realized the router had 64kb, but had no issues running the RT-N66U with the 60kb Tomato firmware. After I corrected this and flashed to the 64kb version of Tomato.
     
  7. jsmiddleton4

    jsmiddleton4 Network Guru Member

    Thanks pharma, the version in your sig?

    And the good old fashion way via the admin page and upload firmware, point to the file, and let it do its thing?
     
  8. jsmiddleton4

    jsmiddleton4 Network Guru Member

    The built in flash update process won't recognize Tomato.

    Did you flash from the Recovery screen?

    Looking at the Asus utilities now, firmware upload thing on it too.
     
  9. jsmiddleton4

    jsmiddleton4 Network Guru Member

    Sorry to be a pia but I of course want to make absolutely certain I have the steps correct.

    1. Set 66N to default IP address.
    2. Reset button so as to place the router in recovery mode.
    3. Use its built in client, point to the tomato firmware on my hard drive and upload it.
    4. Use .K26USB-NVRAM64K-1.28.500.5 variant that I need. It can be named *.bin or *.trx as recovery mode process doesn't care.

    It appears I can also go into recovery mode and then use the Asus recovery utility and it will load the firmware from my drive to the router at 192.168.1.1.

    Are those steps correct?

    Then once Tomato is loaded I can update it as I always have.

    Since Tomato has DHCP off by default I'll need to set my LAN IP manually at first and that is 192.168.1.1 or 192.168.0.1?
     
  10. digiblur

    digiblur Networkin' Nut Member

    Just use the recovery util with your ip set to 192.168.1.2. Always do a thorough nvram erase after you flash.

    Once you are on tomato then you can use the Web interface to change firmware.

    Sent from a little old Note 2
     
  11. jsmiddleton4

    jsmiddleton4 Network Guru Member

    Thanks but didn't work. Got to end of upload, thought it was going to work, then said "Unable to connect to device..." and from then on all I can get to is the recovery screen.

    System acts like its restoring but then losing connection and I have to do reset to get to recovery screen. Something is snarfed. It is going back.
     
  12. jsmiddleton4

    jsmiddleton4 Network Guru Member

    I got it back!

    Figured it couldn't hurt to follow pharma's path and installed the 60k version. It worked......

    Now updating to 64K.
     
  13. Washu-Chan

    Washu-Chan Networkin' Nut Member

    I finally flashed my RT-N66U with the Shibby build (V104, NVRAM-64K, VPN build) using the Asus Utility, and at first I couldn't access the router after waiting at least 5 min. after flashing. I discovered that I had to hold the WPS button on the back of the unit for at least 30 sec., to allow the NVRAM to clear itself. After that, I finally accessed the GUI through 192.168.1.1.

    Here's one more guide:
    http://www.shadowandy.net/2012/03/asus-rt-n66u-tomatousb-firmware-flashing-guide.htm
     
  14. jsmiddleton4

    jsmiddleton4 Network Guru Member

    The 60K versions work great. I can try one more time and do the WPS button thing.
     
  15. jsmiddleton4

    jsmiddleton4 Network Guru Member

    Only thing that will install and work regardless of WPS button, etc., are the 60K versions. I can't go back to the Asus firmware either. Even tried one of the early ones that predated the 64K tweak.

    Is there an NVRAM command, set, etc., that changes the nvram setting so I can install a 64K version?
     
  16. jsmiddleton4

    jsmiddleton4 Network Guru Member

    Shibby's 64K AIO version loaded no problem.

    Something is different between Shibby's RT-N66U and Toastman's.
     
  17. jsmiddleton4

    jsmiddleton4 Network Guru Member

    Here ya go.

    So Shibby works. Man, wasted a big chunk of Sunday evening.....

    Wonder what the difference is?
     

    Attached Files:

  18. jsmiddleton4

    jsmiddleton4 Network Guru Member

    Is there a reason we can't use the 32K versions and stay away from what apparently is a behind the scenes coding trick?
     
  19. Jay So

    Jay So Networkin' Nut Member

    Definitely pass on the DD-WRT and go with Tomato. The info out there can be confusing from forumto forum and post to post. I did flash to shibby myself and it seemed to be easy enough.

    If you are concerned about bricking, which is common and annoying to fix if you are even able to, I know FlashRouters sells RT-N66U's with a Tomato Dual Band build. I think they even throw in 90 days of advanced support and warranty. Not a bad idea if you just want it to work
     

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