Updating OpenWRT on a TP-LINK TL-WR703N

I was writing another page on installing OpenWRT and realized that the version I was using was no longer current. To make that page more relevant I thought I should document the steps to update the OpenWRT installation on a TP-LINK TL-WR703N.

  1. reboot the 703N
  2. telnet into your 703N as root
  3. Make sure the 703N can access the internet. My 703N is connected connected via it's Ethernet port ( to my laptop ( which is connected to the internet.
  4. Get the updated firmware
    cd /tmp
    wget http://downloads.openwrt.org/snapshots/trunk/ar71xx/openwrt-ar71xx-generic-tl-wr703n-v1-squashfs-sysupgrade.bin
  5. Get the MD5 sums to verify the firmware file.
    wget http://downloads.openwrt.org/snapshots/trunk/ar71xx/md5sums
  6. Extract the one MD5 checksum we need:
    grep openwrt-ar71xx-generic-tl-wr703n-v1-squashfs-sysupgrade.bin md5sums >| onefile.md5
  7. Verify the firmware file we downloaded
    md5sum -c onefile.md5
  8. Look for: openwrt-ar71xx-generic-tl-wr703n-v1-squashfs-sysupgrade.bin: OK
  9. Run the upgrade command:
    sysupgrade -v /tmp/openwrt-ar71xx-generic-tl-wr703n-v1-squashfs-sysupgrade.bin