• NETGEAR WNDR3800 ¹⁾
• OpenWrt ²⁾

• Uses ath79 instead of the ar71xx target if possible ³⁾
• 2019/07/17 ath79 snapshot had broken port forwarding * Using sysupgrade with factory (not sysupgrade) images will soft-brick the router ====== Stable ====== ===== Version Check ===== * Latest known version: 18.06.4 * https://downloads.openwrt.org/releases/ ===== Download ===== * 18.06.4 * ar71xx 4) rm -f '/tmp/openwrt-stable-ar71xx-wndr3800-sysupgrade.bin' && wget -O '/tmp/openwrt-stable-ar71xx-wndr3800-sysupgrade.bin' 'https://downloads.openwrt.org/releases/18.06.4/targets/ar71xx/generic/openwrt-18.06.4-ar71xx-generic-wndr3800-squashfs-sysupgrade.bin' ===== Install ===== * -n doesn't save old config * --force forces the flash * -v more verbose ssh 'root'@'192.168.1.1' sysupgrade --force -n -v '/tmp/openwrt-stable-ar71xx-wndr3800-sysupgrade.bin' ===== Configure ===== * https://192.168.1.1 * https://blog.uncensoreddns.org/ ====== Snapshot ====== ===== Date Check ===== * https://downloads.openwrt.org/snapshots/targets/ath79/generic/ ===== Download ===== * ath79 rm -f '/tmp/openwrt-snapshot-ath79-wndr3800-sysupgrade.bin' && wget -O '/tmp/openwrt-snapshot-ath79-wndr3800-sysupgrade.bin' 'https://downloads.openwrt.org/snapshots/targets/ath79/generic/openwrt-ath79-generic-netgear_wndr3800-squashfs-sysupgrade.bin' ===== Install ===== * -n doesn't save old config * --force forces the flash * -v more verbose ssh 'root'@'192.168.1.1' sysupgrade --force -n -v '/tmp/openwrt-snapshot-ar71xx-ath79-sysupgrade.bin' ===== LuCI ===== * https://openwrt.org/docs/guide-user/luci/luci.essentials * Snapshot images don't include LuCI, and need it to be installed seemingly after every snapshot install/update ssh 'root'@'192.168.1.1' opkg update && opkg install 'luci' && opkg install 'luci-ssl-openssl' ===== Configure ===== * https://192.168.1.1 * https://blog.uncensoreddns.org/ ====== Recovery ====== ===== Notes ===== * Can seemingly still use tftp'' even if you can't ping the router

• Pick one
• The stable image URL will need updated if there's a newer version available

wget -O ~/'f.img' 'https://downloads.openwrt.org/releases/18.06.4/targets/ar71xx/generic/openwrt-18.06.4-ar71xx-generic-wndr3800-squashfs-factory.img'

wget -O ~/'f.img' 'https://downloads.openwrt.org/snapshots/targets/ath79/generic/openwrt-ath79-generic-netgear_wndr3800-squashfs-factory.img'

sudo dnf install 'tftp'

tftp

verbose

trace

rexmt 1

binary

connect 192.168.1.1

put f.img