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End of Life

Linksys EA7XXX

Download firmwareversion 4.1.7

Specifications§

Linksys EA7XXX
Processor
MediaTek MT7621AT, MIPS, 880 MHz
Flash memory
128 MB NAND
RAM
256 MB DDR3
Ethernet
4 × 1G LAN + 1 × 1G WAN
USB
1 × USB 2.0, 1 × USB 3.0
Wi-Fi chip
2x MediaTek MT7615N
Wi-Fi 5 GHz
AC, 80MHz, 4x4, 1733MB/s, 256QAM
Wi-Fi 2.4 GHz
N, 40MHz, 4x4, 800MB/s, 256QAM

Build features§

  • CompatibilityEA7500v2, EA8100 and possibly similar models
  • FunctionalityExcept:
    Cloud services
    Components
  • Factory resetWith the Reset button
  • LEDsYes
  • Mesh compatibilityWith original devices and clones
  • Modem rebootNo
  • Built-in storage55.2 MB, Entware can be installed

Preparing for flashing§

  1. Download and unpack the firmware archive The “Download” button is in the panel under the device name.
  2. Connect the router to the computer with a cable (Ethernet) Flashing over Wi-Fi is not possible.

Installing from stock firmware§

Installing the Breed bootloader§

  1. Installing OpenWrt Install OpenWrt for your device as described on the official website.
  2. Saving the calibration Save EEPROM/factory/mtd2 from your device.
  3. Installing the package Give the router internet access and install the kmod-mtd-rw package.
  4. Writing the bootloader Open a console and connect to the router over SSH. Serve breed.bin with HFS and run the commands:
Enter one command at a time
  1. cd /tmp
  2. wget http://192.168.1.2/breed.bin
  3. insmod mtd-rw i_want_a_brick=1
  4. mtd unlock /dev/mtd0
  5. mtd write /tmp/breed.bin boot
  6. reboot

  1. Backup Open Breed at 192.168.1.1 and save a Full backup in case you want to return to the factory firmware.

    Full backup in Breed

Flashing through Breed§

  1. Serving the files Start HFS and put all files from the archive into it, along with your calibration (EEPROM/factory/mtd2). The correct MAC addresses must be written into the calibration beforehand with the EEPROM tools.

    Firmware files in HFS

  2. Flashing over Telnet Start PuTTY, connect over Telnet to 192.168.1.1 on port 23 and paste the commands with the right mouse button, waiting for the previous one to finish.

    Warning

    • Turn off your OS firewall and antivirus beforehand.
    • The messages skipped bad blocks and Flash erasure failed with -5 after entering the commands are normal.

    Caution

    • Each line is a separate command. If it fails, run it again.
    • Compare the IP in the wget commands below with the IP shown in HFS. In the Breed bootloader it always starts with 192.168.1.xxx.
Enter one command at a time
  1. flash erase 0x80000 0x7f00000
  2. wget http://192.168.1.2/u-config.bin
  3. flash write 0x80000 0x80001000 0x80000
  4. flash write 0x4040000 0x80001000 0x80000
  5. wget http://192.168.1.2/eeprom.bin
  6. flash write 0x100000 0x80001000 0x80000
  7. flash write 0x40c0000 0x80001000 0x80000
  8. wget http://192.168.1.2/firmware.bin
  9. flash write 0x180000 0x80001000 0x1AB3F00
  10. flash write 0x4140000 0x80001000 0x1AB3F00
  11. wget http://192.168.1.2/u-state.bin
  12. flash write 0x3fc0000 0x80001000 0x80000
  13. env set autoboot.command "boot flash 0x4140000"
  14. env save
  15. reset
Sample console output

Breed console output

After the reboot the device starts

Done!

Router access

Web interface
192.168.1.1
Wi-Fi password
12345678

Updating the firmware§

To update, use any method for NAND memory.

Reverting to stock firmware§

You will need the backup saved before flashing. The steps are in the instructions for MT7621.

Something went wrong?

Where to look if the router does not start or something did not go as described.

Reverting to stock firmwareA section of this guide.
Enter the bootloaderIt lets you reflash the router even when the system does not start.Breed
Stuck at BreedHow to find the cause and what to do — in the FAQ.Ask in the Telegram chatName your router model and the step where things went wrong.