openwrt/target/linux/ramips
Dmitry Sokolov 39e4f03fd3 ramips: mt7621: add support for Xiaomi Mi Router 4A Gigabit v2
Device is the same as Xiaomi Mi Router 4A Gigabit, except of:
- 5G WiFi is MT7663
- addresses of leds, wifi and eth ports are slightly changed

Specs:
  SoC:  MT7621
  CPU:  2 x 880 MHz
  ROM:  16 MB
  RAM:  128 MB
  WLAN: MT7603, MT7663

MAC addresses:
  WAN     ****  factory 0xe006 (label)
  LAN     *:f7  factory 0xe000
  2.4 GHz *:f8  factory 0x0000+0x4 (mtd-eeprom+0x4)
  5 GHz   *:f9  factory 0x8000+0x4 (mtd-eeprom+0x4)

Installation:

Factory firmware is based on a custom OpenWrt 17.x.
Installation is the same as for Xiaomi Mi Router 4A Gigabit.

Probably the easiest way to install is to use the script from
this repository: https://github.com/acecilia/OpenWRTInvasion/pull/155

In a more advanced case, you can do everything yourself:
- gain access to the device through one of the exploits described
  in the link above
- upload sysupgrade image to /tmp
- overwrite stock firmware:
  # mtd -e OS1 -r write /tmp/sysupgrade.bin OS1

Recovery:

Recovery procedure is the same as for Xiaomi Mi Router 4A Gigabit.
Possible options can be found here:
https://openwrt.org/inbox/toh/xiaomi/xiaomi_mi_router_4a_gigabit_edition

One of the ways is to use another router with OpenWrt:
- connect both routers by their LAN ports
- download stock firmware from [1]
- place it inside /tmp/test.bin on the main router
- configure PXE/TFTP on the main router
- power off 4Av2, hold Reset button, power on
- as soon as image download via TFTP starts, Reset can be released
- blinking blue wan LED will indicate the end of the flashing process,
  now router can be rebooted
[1] http://cdn.cnbj1.fds.api.mi-img.com/xiaoqiang/rom/r4av2/miwifi_r4av2_firmware_release_2.30.28.bin

Signed-off-by: Dmitry Sokolov <e323w@proton.me>
2023-01-28 22:11:44 +01:00
..
base-files/etc ramips: remove model name from LED labels 2020-10-02 14:51:57 +02:00
dts ramips: mt7621: add support for Xiaomi Mi Router 4A Gigabit v2 2023-01-28 22:11:44 +01:00
files/drivers ramips: ethernet: ralink: add led_source dts-binding 2022-05-01 13:40:13 +09:00
image ramips: mt7621: add support for Xiaomi Mi Router 4A Gigabit v2 2023-01-28 22:11:44 +01:00
mt76x8 ramips: improve support for Zyxel Keenetic Extra II 2023-01-28 21:45:34 +01:00
mt7620 ramips: add support for SNR-CPE-W4N-MT router 2022-12-17 22:34:44 +01:00
mt7621 ramips: mt7621: add support for Xiaomi Mi Router 4A Gigabit v2 2023-01-28 22:11:44 +01:00
patches-5.10 kernel: bump 5.10 to 5.10.163 2023-01-14 22:31:38 +01:00
patches-5.15 kernel: bump 5.15 to 5.15.87 2023-01-13 22:04:22 +01:00
rt288x kernel: disable CONFIG_CPU_LITTLE_ENDIAN in generic config 2022-10-21 13:47:01 +02:00
rt305x kernel: disable CONFIG_CPU_LITTLE_ENDIAN in generic config 2022-10-21 13:47:01 +02:00
rt3883 kernel: disable CONFIG_CPU_LITTLE_ENDIAN in generic config 2022-10-21 13:47:01 +02:00
Makefile ramips: add linux 5.15 support for mt7621 2022-03-27 21:36:40 +02:00
modules.mk ramips: rename mtk-hsdma to hsdma-mt7621 2021-03-04 23:43:02 -10:00