The Edimax is an AC1200 Wall-Wart access point. It has 1 Gigabit Ethernet port and 2 external antennas. It is now also sold under the name Edimax Gemini RE11 as a pair of range extenders and as RE11S as as a single range extender. The firmware for the EW-7478AP can be flashed also onto these devices, see the installation instructions below. The device is also compatible with the EW-7476RPC, which has internal instead of the external antennas.
|Model||Version||Current Release||Firmware OpenWrt snapshot Install||Firmware OpenWrt snapshot Upgrade||Firmware OEM Stock|
sysupgrade.bin file. Depending on the branding, you need to edit a magic number at the beginning of the binary file with a hex-editor (e.g. hexer on Linux). The original Edimax model has RN70 starting at file position 0x0c. If you want to flash the OpenWrt firmware for the first time on a rebranded model, you need to edit this magic number to match the magic number you can find at the beginning of the orignal vendor's firmware upgrade file. For the Edimax Gemini RE11 and RE11S modles, the magic number is RN74.
|0x3000||Flash Hardware settings: u-boot-env|
|0x4000||Flash Default Settings: factory|
|0x7000||Linux image flash offset start|
|0x80000||End of 8192KB flash|
The instructions below are for Broadcom devices and only serve as an example.
Remove / modify them if they do not apply to this particular device!
This section deals with
Note: Reset router to factory defaults if it has been previously configured.
http://192.168.1.1if LuCI is installed.
There are no specific values needed for this device, the U-Boot bootloader allows you to set the device's own IP address and the address of the tftp server. It also allows you to enter the name of the image to transfer.
These are generic instructions. Update with your router's specifics.
http://192.168.1.1/cgi-bin/luci/mini/system/upgrade/LuCI Upgrade URL
If you don't have a GUI (LuCI) available, you can alternatively upgrade via the command line. There are two command line methods for upgrading:
Note: It is important that you put the firmware image into the ramdisk (/tmp) before you start flashing.
cd /tmp wget http://downloads.openwrt.org/snapshots/trunk/XXX/xxx.abc sysupgrade /tmp/xxx.abc
sysupgrade does not support this router, use
cd /tmp wget http://downloads.openwrt.org/snapshots/trunk/XXX/xxx.abc mtd write /tmp/xxx.abc linux && reboot
→ Basic configuration After flashing, proceed with this.
Set up your Internet connection, configure wireless, configure USB port, etc.
The default network configuration is:
|Interface Name||Description||Default configuration|
|br-lan||LAN & WiFi||192.168.1.1/24|
|vlan0 (eth0)||LAN ports||None|
As there is only 1 Ethernet port, there is nothing you can configure on the switch.
→ hardware.button on howto use and configure the hardware button(s). Here, we merely name the buttons, so we can use them in the above Howto.
The Edimax EW-7478AC has the following buttons:
|Switch WiFi Off, 50%, 100%||Not configured|
|Device Type||Range Extender|
|Comments - general|
|Supported Since Commit||https://git.openwrt.org/?p=openwrt/openwrt.git;a=commit;h=88f7a29f99fb8209f6d7100d0cc0f7af6dba89cf|
|Supported Since Release|
|Supported Current Release||snapshot|
|Sub Instruction Set|
|Ethernet 100M ports||-|
|Ethernet Gbit ports||1|
|Comments - network ports|
|WLAN Hardware||MediaTek MT7620A, MediaTek MT7612EN|
|Comments - WLAN|
|Comments - USB & SATA ports|
|Power supply||100-240 VAC, 0.16 A, 50-60Hz|
|Forum Topic URL|
|OEM device homepage URL||https://www.edimax.com/edimax/merchandise/merchandise_detail/data/edimax/global/wi-fi_range_extenders_ac1200/ew-7478ac/|
|Firmware OEM Stock URL||https://www.edimax.com/edimax/download/download/data/edimax/global/download/for_home/wi-fi_range_extenders/wi-fi_range_extenders_ac1200/ew-7478ac|
|Firmware OpenWrt Install URL|
|Firmware OpenWrt Upgrade URL|
|Edit the underlying data||View/Edit data|
Insert photo of front of the casing
Insert photo of back of the casing
Insert photo of backside label
Note: This will void your warranty!
To open the case, remove the sticker at the back of the device with the default login setting. Remove the screw that was below the sticker. Pry open the lid from the backside of the device with a prying tool starting from one of the air outlets at the top or bottom of the device.
Insert photo of PCB
→ port.serial general information about the serial port, serial port cable, etc.
How to connect to the Serial Port of this specific device:
Insert photo of PCB with markings for serial port
Replace EXAMPLE by real values.
| Serial connection parameters|
for Edimax EW-7478AC @@Version@@
|EXAMPLE 115200, 8N1|
→ port.jtag general information about the JTAG port, JTAG cable, etc.
How to connect to the JTAG Port of this specific device:
Insert photo of PCB with markings for JTAG port
COPY HERE THE BOOTLOG WITH THE ORIGINAL FIRMWARE
COPY HERE THE BOOTLOG ONCE OPENWRT IS INSTALLED AND RUNNING
Space for additional notes, links to forum threads or other resources.