How to recover routers which initially worked fine, but became inaccesible due to a configuration change?

This recovery procedure is valid for routers, that have ChilliWRT or OpenWRT installed.

  1. Power down the router.
  2. Connect the router to the Internet on the WAN Ethernet port at the back of the router.
  3. Power up the router; wait until the LED marked SYS on the front of the router starts blinking.
  4. When the LED marked SYS on the front of the router starts blinking, press the QSS button on the front or the Reset button on the back of the router.
  5. The LED marked SYS will start blinking very fast, indicating you are now in recovery mode.
  6. Once the router is in recovery mode, set the interface of your computer that you want to use to connect to the router to a static IP address
  7. Connect the computer with a LAN cable to the router’s LAN port 1.
  8. On windows open a command prompt window (Start->Run, type cmd, press <Enter>), on Linux open a terminal window.
  9. Type the command telnet, and press <Enter>; you will be greeted by an OpenWrt Logo and find yourself inside the OpenWrt console.
  10. Type mtd unlock rootfs_data, and press <Enter>.
  11. Type mtd -r erase rootfs_data, and press <Enter>.
  12. Wait for 15 minutes, during which the router will reboot 3 times; leave the router connected to the Internet the whole time.
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