From DD-WRT Wiki
(Redirected from DIR-601)
 Flashing Instructions
CONFIRMED TO WORK ON A1 HARDWARE VERSION ONLY!
- Plug a cable into the LAN port of your router. Never upgrade except with a LAN cable connected to your router from your computer, and make sure your firewall, virus protection and wireless are OFF in your computer.
- On your router, hold the reset button down for 30 seconds. Power light should turn orange and then after you let go of the reset button, after a few minutes, all lights should return to normal.
- Set a static IP on your computer of 192.168.0.9. If you don't know how to do this, you should not be messing with third party firmware.
- Login to the router at 192.168.0.1. Admin is username and password is left blank. MAKE SURE YOU HAVE RETURNED TO FACTORY DEFAULTS
- Go to the firmware upgrade page. Select the dir601a1-factory-to-ddwrt-firmware.bin that you downloaded earlier to upgrade
- Hit UPGRADE.
- WAIT FOR THREE MINUTES WITHOUT TOUCHING ANYTHING. TIME THIS!
- An orange soccer ball like icon will light on the front of your router and this will stay lit.
- Change your computer IP back to AUTO IP and AUTO dns.
- Check your LAN connection status. You should have an IP on your computer in the 192.168.1.xxx range.
- Logon to your router at 192.168.1.1
- SELECT the username (make ALL the dots blue highlighted) and enter one that you will remember.
- Select the password and enter one that you will remember, and then enter these and go in and configure your router.
 Restore to Factory Firmware
(Per user experiences, if you are having difficulty flashing, use Windows with Internet Explorer 6 or Ultra Simple Web Browser 2.0 .)
* set your computer's ip manually to: 192.168.0.X (not 1) AND set your subnet mask to 255.255.255.0. * unplug the power cable to the router * press the reset button and plug in the power cable when the power led flashes orange release the reset. * go to 192.168.0.1 * Upload your original firmware and wait * After update, the factory firmware saved my old settings so I connected to my previously set router IP.