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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>
81 lines
1.3 KiB
Plaintext
81 lines
1.3 KiB
Plaintext
// SPDX-License-Identifier: GPL-2.0-or-later OR MIT
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#include "mt7621_xiaomi_mi-router-4a-common.dtsi"
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/ {
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compatible = "xiaomi,mi-router-4a-gigabit-v2", "mediatek,mt7621-soc";
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model = "Xiaomi Mi Router 4A Gigabit Edition v2";
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aliases {
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label-mac-device = &wan;
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};
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leds {
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compatible = "gpio-leds";
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led_status_blue: status_blue {
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label = "blue:status";
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gpios = <&gpio 13 GPIO_ACTIVE_LOW>;
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};
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led_status_yellow: status_yellow {
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label = "yellow:status";
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gpios = <&gpio 15 GPIO_ACTIVE_LOW>;
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};
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wan_blue {
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label = "blue:wan";
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gpios = <&gpio 14 GPIO_ACTIVE_LOW>;
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};
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wan_yellow {
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label = "yellow:wan";
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gpios = <&gpio 16 GPIO_ACTIVE_LOW>;
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};
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};
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};
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&partitions {
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partition@180000 {
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// size changed against to the common dtsi
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reg = <0x180000 0xe70000>;
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};
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partition@ff0000 {
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label = "Config";
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reg = <0xff0000 0x10000>;
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read-only;
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};
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};
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&wifi0 {
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mediatek,mtd-eeprom = <&factory 0x0000>;
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ieee80211-freq-limit = <2400000 2500000>;
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};
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&wifi1 {
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mediatek,mtd-eeprom = <&factory 0x8000>;
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ieee80211-freq-limit = <5000000 6000000>;
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};
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&switch0 {
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ports {
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port@1 {
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status = "okay";
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label = "lan1";
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};
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port@2 {
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status = "okay";
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label = "lan2";
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};
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wan: port@3 {
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status = "okay";
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label = "wan";
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nvmem-cells = <&macaddr_factory_e006>;
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nvmem-cell-names = "mac-address";
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};
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};
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};
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