FCC ID: A8J-ESR750H
Engenius ESR600H is an indoor wireless router with a gigabit switch,
2.4 GHz and 5 GHz wireless, internal and external antennas, and a USB port.
**Specification:**
- RT3662F MIPS SOC, 5 GHz WMAC (2x2)
- RT5392L PCI on-board, 2.4 GHz (2x2)
- AR8327 RGMII, 7-port GbE, 25 MHz clock
- 40 MHz reference clock
- 8 MB FLASH 25L6406EM2I-12G
- 64 MB RAM
- UART at J12 (unpopulated)
- 2 internal antennas (5 GHz)
- 2 external antennas (2.4 GHz)
- 9 LEDs, 1 button (power, wps, wifi2g, wifi5g, 5 LAN/WAN)
- USB 2 port (GPIO controlled power)
**MAC addresses:**
MAC Addresses are labeled as WAN and WLAN
U-boot environment has the the vendor MAC address for ethernet
MAC addresses in "factory" are part of wifi calibration data
eth0.2 WAN *:13:e7 u-boot-env wanaddr
eth0.1 ---- *:13:e8 u-boot-env wanaddr + 1
phy0 WLAN *:14:b8 factory 0x8004
phy1 ---- *:14:bc factory 0x4
**Installation:**
Method 1: Firmware upgrade page
OEM webpage at 192.168.0.1
username and password "admin"
Navigate to Network Setting --> Tools --> Firmware
Click Browse and select the factory.dlf image
Click Continue to confirm and wait 6 minutes or more...
Method 2: Serial console to load TFTP image:
(see TFTP recovery)
**Return to OEM:**
Unlike most Engenius boards, this does not have a 'failsafe' image
the only way to return to OEM is serial access to uboot
Unlike most Engenius boards, public images are not available...
so the only way to return to OEM is to have a copy
of the MTD partition "firmware" BEFORE flashing openwrt.
**TFTP recovery:**
Unlike most Engenius boards, TFTP is reliable here
however it requires serial console access
(soldering pins to the UART pinouts)
build your own image...
with 'ramdisk' selected under 'Target Images'
rename initramfs-kernel.bin to 'uImageESR-600H'
make the file available on a TFTP server at 192.168.99.8
interrupt boot by holding or pressing '4' in serial console
as soon as board is powered on
`tftpboot 0x81000000`
`bootm 0x81000000`
perform a sysupgrade
**Format of OEM firmware image:**
This Engenius board uses the Senao proprietary header
with a unique Product ID. The header for factory.bin is
generated by the mksenaofw program included in openwrt.
.dlf file extension is also required for OEM software to accept it
**Note on using OKLI:**
the kernel is now too large for the bootloader to handle
so OKLI is used via the `kernel-loader` image command
recently in master several other ramips boards have the same problem
'Kernel panic - not syncing: Failed to find ralink,rt3883-sysc node'
see commit ad19751edc
Signed-off-by: Michael Pratt <mcpratt@pm.me>
