软件源的替换

shell
# sed -i 's_https\?://mirrors.vsean.net/openwrt_https://mirrors.tuna.tsinghua.edu.cn/openwrt_' /etc/opkg/distfeeds.conf
# sed -i 's_https\?://downloads.openwrt.org_https://mirrors.tuna.tsinghua.edu.cn/openwrt_' /etc/opkg/distfeeds.conf

sed -e 's,https://downloads.immortalwrt.org,https://mirrors.ustc.edu.cn/immortalwrt,g' \
-e 's,https://mirrors.vsean.net/openwrt,https://mirrors.ustc.edu.cn/immortalwrt,g' \
-i.bak /etc/opkg/distfeeds.conf

安装必备软件

shell
opkg update && opkg install luci-theme-argon luci-i18n-argon-config-zh-cn kmod-usb-net-rndis kmod-usb-net-ipheth usbmuxd

# opkg update && opkg install luci-app-homeproxy luci-i18n-homeproxy-zh-cn ip-full kmod-tun
# opkg update && opkg install luci-app-openclash

更新所有软件包

shell
opkg update && opkg list-upgradable | cut -f 1 -d ' ' | xargs -r opkg upgrade

刷机教程(来自于OpenWrt Git提交记录)

mediatek: add support for Cudy TR3000 v1
Hardware:
 - SoC: MediaTek MT7981B
 - CPU: 2x 1.3 GHz Cortex-A53
 - Flash: 128 MiB SPI NAND
 - RAM: 512 MiB
 - WLAN: 2.4 GHz, 5 GHz (MediaTek MT7976CN, 802.11ax)
 - Ethernet: 1x 10/100/1000/2500 Mbps RTL8221B WAN, 1x10/100/1000 Mbps MT7981 LAN
 - USB 3.0 port
 - Buttons: 1 Reset button, 1 slider button
 - LEDs: 1x Red, 1x White
 - Serial console: internal test points, 115200 8n1
 - Power: 5 VDC, 3 A

MAC addresses:
+---------+-------------------+-----------+
|         | MAC               | Algorithm |
+---------+-------------------+-----------+
| WAN     | 80:af:ca:xx:xx:x1 | label+1   |
| LAN     | 80:af:ca:xx:xx:x0 | label     |
| WLAN 2g | 80:af:ca:xx:xx:x0 | label     |
| WLAN 5g | 82:af:ca:xx:xx:x0 |           |
+---------+-------------------+-----------+

Installation:
The installation must be done via TFTP by disassembling the router. On other occasions Cudy has distributed intermediate firmware to make installation easier, and so I recommend checking the Wiki for this device if there is a more convenient solution than the one below.

To install using TFTP:
1. Connect to UART.
2. With the router off, press the RESET button. While the router is turning on, the button should continue to be pressed for at least 5 seconds.
3. A u-boot shell will automatically open.
4. Connect to LAN and set your IP to 192.168.1.88/24. Configure a TFTP server and an OpenWrt initramfs-kernel.bin firmware file.
5. Run these steps in u-boot using the name of your file.

setenv bootfile initramfs-kernel.bin
tftpboot
bootm

6. If you can reach LuCI or SSH now, just use the sysupgrade image with the 'Keep settings' option turned off.

---
mediatek: add ubootmod layout for cudy tr3000 v1
This allows us to use the full size of nand, which increases ubi size
from 64M to 122.25M.

If you are at factory firmware, please refer commit 63b8d98 ("mediatek: add support for Cudy TR3000 v1")
to boot into OpenWrt initramfs (stock layout version).

Flash instructions:
1. Login into the device and backup everything, especially 'Factory' part.
2. Unlock mtd partitions:
   apk update && apk add kmod-mtd-rw
   insmod mtd-rw i_want_a_brick=1
2. Write new BL2 and FIP
   mtd write openwrt-mediatek-filogic-cudy_tr3000-v1-ubootmod-preloader.bin BL2
   mtd write openwrt-mediatek-filogic-cudy_tr3000-v1-ubootmod-bl31-uboot.fip FIP
4. Set static IP on your PC:
   IP 192.168.1.254/24, GW 192.168.1.1
5. Serve OpenWrt initramfs image using TFTP server.
6. Cut off the power and re-engage, wait for TFTP recovery to complete.
7. After OpenWrt has booted, perform sysupgrade.