https://openwrt.org/toh/xiaomi/redmi_ax6000

https://firmware-selector.openwrt.org

https://github.com/openwrt/openwrt

uboot

按住路由器的RESET按钮之后通电，保持至少15秒后松开，路由器会自动进入uboot的failsafe模式，由于uboot没有DHCP功能，需要把电脑的IP地址设置成静态IP 192.168.31.100/24，更新固件http://192.168.31.1/，更新uboothttp://192.168.31.1/uboot.html。

scp -O '/Users/user/Downloads/mt7986_redmi_ax6000-fip-fixed-parts-multi-layout.bin' root@192.168.1.1:/tmp/

opkg update && opkg install wget kmod-mtd-rw
insmod /lib/modules/$(uname -r)/mtd-rw.ko i_want_a_brick=1

mtd write /tmp/mt7986_redmi_ax6000-fip-fixed-parts-multi-layout.bin FIP
mtd verify /tmp/mt7986_redmi_ax6000-fip-fixed-parts-multi-layout.bin FIP

sing-box

opkg update && opkg install sing-box
service sing-box reload
service sing-box restart
service sing-box status
service sing-box info

/etc/config/sing-box

option enabled '1'
option user 'root'

/etc/sing-box/config.json

"inbounds": [
  {
    "type": "tun",
    "address": [
      "172.19.0.1/30"
    ],
    "auto_route": true,
    "strict_route": true
  }
],
"experimental": {
  "clash_api": {
    "external_controller": "0.0.0.0:9090",
    "external_ui": "dashboard", // http://192.168.6.1:9090/ui/
    "secret": "123456"
  }
}

关联 tun 接口，分配防火墙区域

Reference