TFTP Recovery

REF: EdgeRouter - TFTP Recovery

1) Download firmware

ER-X-SFP / ER-X / EP-R6 (e50)

2) Enter recovery mode

• (power unplug)
• connect pc to port eth0
• set pc ip address 192.168.1.10/24
• push and hold reset button, plugging power cable
• port led light up sequence from eth0 to eth4
• continue hold reset and wait about 30 seconds until all port led light up
• release button, and wait
• TFTP recovery mode active: eth0,eth2,eth4 and eth1,eth3 continuously turn on and off

3) Upload firmware

• on macos

tftp
tftp> connect 192.168.1.20
tftp> binary
tftp> put ER-e50.recovery.v2.0.6.5208541.190708.0508.16de5fdde.img.signed

• when uploading, port led light up form eth0 to eth4
• wait for the TFTP recovery process to completed
• system will automatically reboot
• access via 192.168.1.1 ip address on the eth0 port
• default username/password: ubnt

Installation OpenWrt

REF1: Ubiquiti EdgeRouter X (ER-X) REF2: (Chinese)

1) download firmware

image does not support the device when use new version in REF1, download this old version:

lede-ramips-mt7621-ubnt-erx-initramfs-factory.tar ( Mirror )

2) upload to er-x

scp lede-ramips-mt7621-ubnt-erx-initramfs-factory.tar ubnt@192.168.1.1:/tmp/

3) ssh in er-x and add image

ssh ubnt@192.168.1.1
cd /tmp
add system image lede-ramips-mt7621-ubnt-erx-initramfs-factory.tar
show system image
reboot

ignore warning too many arguments

4) download openwrt sysupgrade file

from REF1, or this link

5) upload to exr-x

connect pc to eth1

scp openwrt-19.07.4-ramips-mt7621-ubnt-erx-squashfs-sysupgrade.bin root@192.168.1.1:/tmp/

6) upgrade

ssh root@192.168.1.1
cd /tmp
sysupgrade openwrt-19.07.4-ramips-mt7621-ubnt-erx-squashfs-sysupgrade.bin

on openwrt, Network - Switch, port map as:

LAN1 - LAN2 - LAN3 - LAN4    -    WAN
eht1 - eth2 - eth3 - eth4    -    eth0
                (right port) - (left port)