Reference: http://www.dd-wrt.com/wiki/index.php/Linksys_E3000

• This router must first be flashed with:
  E3000 v1 Firmware - Webflash image dd-wrt.v24-21061_NEWD-2_K2.6_mini-e3000.bin 2013-04-22 3.38MB
• Only then can it be flashed with K26 Shibby Tomato E3000USB firmware
  I used tomato-E3000USB-NVRAM60K-1.28.RT-MIPSR2-124-VPN.bin 2014-12-25 7.4MB

1. 30/30/30 Reset this router back to “Factory Defaults”
   • Login using the factory default admin & admin User & Password
2. Flash this router using dd-wrt.v24-21061_NEWD-2_K2.6_mini-e3000.bin
   • Wait a full 5 min. to make certain this flash has completed.
3. Power off, wait 30 sec., then power back on
   • Wait 3 min. to make certain the router has finished trying to boot.
4. 30/30/30 Reset this router again
   • Again, wait 3 min. to make certain the router has finished booting
5. set the User & Password back to admin & admin
6. Now flash this router with tomato-E3000USB-NVRAM60K-1.28.RT-MIPSR2-124-VPN.bin
   • Wait at least 5 min. for the router to finish flashing. (It took a little longer for me to see a User & Password pop-up)
7. Power off, wait 30 sec., then power back on
   • Wait 3 min. to make certain the router has finished trying to boot.
8. 30/30/30 Reset this router yet again
   • Again, wait 3 min. to make certain the router has finished booting