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toh:linksys:linksys_ea7500_v2

Linksys EA7500 v2

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Write a short, relevant description of the device. Include a technical overview, but avoid marketing buzzwords/useless stuff. Two to four sentences is about right. A picture is good, too. Edit the page to see how to add pictures.

FIXME Any text with a light background (like this one) provides instructions for creating the Details Page. When you have filled in correct/useful information (instead of any template that's there) remove the instructions, as well as the <WRAP> that encloses it.

Generic Router

FIXME

Getting started with a new Device Page

  1. This is an empty template that suggests the information that should be present on a well-constructed Device Page. This means, that you have to fill it with life and information.
  2. There are several “fixme” tags with text on a light background (like this text) throughout this template. As you fill in the page, remove those tags so that people can judge its completeness.
  3. When there are no more “fixme” tags left, delete this one too, along with the <WRAP> that encloses it.

Keep the articles modular

  • Please include only model specific information, omit bla,bla and put everything generic into separate articles
  • If you have no time to write certain stuff, link to docs
  • base-system should lead the way, do not explain this again
  • DO NOT provide a complete howto here! Instead groom the general documentation.

Supported Versions

Hardware Highlights

ModelVersionSoCCPU MHzFlash MBRAM MBWLAN HardwareWLAN2.4WLAN5.0100M portsGbit portsModemUSB
EA7500v2MediaTek MT7621AT880128NAND256MediaTek MT7615Nb/g/na/n/ac-5-1x 2.0, 1x 3.0

Installation

Flash successfull, OpenWrt can be reached

If the flash succeed and you can reach OpenWrt through the web interface or ssh, you are done.

Flash unsuccessfull, router booting to OEM firmware

If the flashing was unsuccessfull

  1. the router will try to boot 3 times and then will automatically boot the OEM firmware.
    Don’t turn off the router. Simply wait and try to reach the router through the web interface every now and then, it will take few minutes. After this, you should be back in the OEM firmware.
  2. Now you have to flash the OEM Firmware over itself using the OEM web interface (I tested it using the FW_EA7500v2_2.0.8.194281_prod.img downloaded from the Linksys website).
  3. When the router reboots flash the factory.bin OpenWrt image and this time it should work.
  4. After the OpenWrt installation you have to use the sysupgrade image for future updates.

Restore OEM Firmware

After the OpenWrt flash, the OEM firmware is still stored in the second partition thanks to the dual boot system. You can switch from OpenWrt to OEM firmware and vice-versa failing the boot 3 times in a row:

  1. power on the router
  2. wait 15 seconds
  3. power off the router
  4. repeat steps 1-2-3 twice more.
  5. power on the router and you should be in the “other” firmware

If you want to completely remove OpenWrt from your router, switch to the OEM firmware and then flash OEM firmware from the web interface as a normal update. This procedure will overwrite the OpenWrt partition.

Flash Layout

FIXME Find out flash layout, then add the flash layout table here (copy, paste, modify the example).

Please check out the article Flash layout. It contains examples and explanations that describe how to document the flash layout.

OEM easy installation

FIXME 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

  • How you install OpenWrt from a device freshly opened
  • The steps required such as reset to factory defaults if the device has already been configured

Note: Reset router to factory defaults if it has been previously configured.

  • Browse to http://192.168.1.1/Upgrade.asp
  • Upload .bin file to router
  • Wait for it to reboot
  • Telnet to 192.168.1.1 and set a root password, or browse to http://192.168.1.1 if LuCI is installed.

OEM installation using the TFTP method

Specific values needed for tftp

FIXME Enter values for “FILL-IN” below

Bootloader tftp server IPv4 address FILL-IN
Bootloader MAC address (special) FILL-IN
Firmware tftp image Latest OpenWrt release (NOTE: Name must contain “tftp”)
TFTP transfer window FILL-IN seconds
TFTP window start approximately FILL-IN seconds after power on
TFTP client required IP address FILL-IN

Upgrading OpenWrt

generic.sysupgrade

FIXME These are generic instructions. Update with your router's specifics.

LuCI Web Upgrade Process

  • Browse to http://192.168.1.1/cgi-bin/luci/mini/system/upgrade/ LuCI Upgrade URL
  • Upload image file for sysupgrade to LuCI
  • Wait for reboot

Terminal Upgrade Process

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:

  • sysupgrade
  • mtd

Note: It is important that you put the firmware image into the ramdisk (/tmp) before you start flashing.

sysupgrade

  • Login as root via SSH on 192.168.1.1, then enter the following commands:
cd /tmp
wget http://downloads.openwrt.org/snapshots/trunk/XXX/xxx.abc
sysupgrade /tmp/xxx.abc

mtd

If sysupgrade does not support this router, use mtd.

  • Login as root via SSH on 192.168.1.1, then enter the following commands:
cd /tmp
wget http://downloads.openwrt.org/snapshots/trunk/XXX/xxx.abc
mtd write /tmp/xxx.abc linux && reboot

Debricking

Failsafe mode

Basic configuration

Basic configuration After flashing, proceed with this.
Set up your Internet connection, configure wireless, configure USB port, etc.

Specific Configuration

FIXME Please fill in real values for this device, then remove the EXAMPLEs

Network interfaces

The default network configuration is:

Interface Name Description Default configuration
br-lan EXAMPLE LAN & WiFi EXAMPLE 192.168.1.1/24
vlan0 (eth0.0) EXAMPLE LAN ports (1 to 4) EXAMPLE None
vlan1 (eth0.1) EXAMPLE WAN port EXAMPLE DHCP
wl0 EXAMPLE WiFi EXAMPLE Disabled

Switch Ports (for VLANs)

FIXME Please fill in real values for this device, then remove the EXAMPLEs

Numbers 0-3 are Ports 1-4 as labeled on the unit, number 4 is the Internet (WAN) on the unit, 5 is the internal connection to the router itself. Don't be fooled: Port 1 on the unit is number 3 when configuring VLANs. vlan0 = eth0.0, vlan1 = eth0.1 and so on.

Port Switch port
Internet (WAN) EXAMPLE 4
LAN 1 EXAMPLE 3
LAN 2 EXAMPLE 2
LAN 3 EXAMPLE 1
LAN 4 EXAMPLE 0

Buttons

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.

FIXME Please fill in real values for this device, then remove the EXAMPLEs

The Linksys EA7500 has the following buttons:

BUTTON Event
EXAMPLE Reset reset
EXAMPLE Secure Easy Setup ses
EXAMPLE No buttons at all. -

Hardware

Info

General
Brand Linksys
Model EA7500
Versions v2
Device Type WiFi Router
Availability Discontinued
Comments - general
OpenWrt Support
Supported Since Commit https://git.openwrt.org/?p=openwrt/openwrt.git;a=commit;h=31b49f02ca8a82a36f920d4b29626f2845e9eb50
Supported Since Release
Supported Current Release snapshot
Unsupported
Hardware
Bootloader U-Boot
Target ramips
System-On-Chip
CPU MHz 880
Flash MB 128NAND
RAM MB 256
Network
Ethernet 100M ports -
Ethernet Gbit ports 5
Switch MediaTek MT7621AT
Modem -
VLAN Yes
Comments - network ports
Wireless
WLAN 2.4GHz b/g/n
WLAN 5.0GHz a/n/ac
WLAN Hardware MediaTek MT7615N
Detachable Antennas 3
Comments - WLAN
Interfaces
USB ports 1x 2.0, 1x 3.0
SATA ports -
Serial ¿
JTAG ¿
Comments - USB & SATA ports
Misc
LED count 12
Button count 2
Power supply 12 VDC, 2.5 A
Links
Forum Topic URL
WikiDevi URL https://wikidevi.wi-cat.ru/Linksys_EA7500_v2
OEM device homepage URL https://www.linksys.com/us/p/P-EA7500/
Firmware OEM Stock URL https://www.linksys.com/us/support-article/?articleNum=183933
Firmware OpenWrt Install URL
Firmware OpenWrt Upgrade URL
Edit the underlying data View/Edit data

Photos

Front:
Insert photo of front of the casing

Back:
Insert photo of back of the casing

Backside label:
Insert photo of backside label

Opening the case

Note: This will void your warranty!

FIXME Describe what needs to be done to open the device, e.g. remove rubber feet, adhesive labels, screws, …

  • To remove the cover and open the device, do a/b/c

Main PCB:
Insert photo of PCB

Serial

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

FIXME Replace EXAMPLE by real values.

Serial connection parameters
for Linksys EA7500 v2
EXAMPLE 115200, 8N1

JTAG

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

Bootloader mods

Hardware mods

None so far.

Bootlogs

OEM bootlog

COPY HERE THE BOOTLOG WITH THE ORIGINAL FIRMWARE


OpenWrt bootlog

COPY HERE THE BOOTLOG ONCE OPENWRT IS INSTALLED AND RUNNING


Notes

Space for additional notes, links to forum threads or other resources.

Tags

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toh/linksys/linksys_ea7500_v2.txt · Last modified: 2020/05/18 19:43 by tmomas