Xiaomi Mi Router 4 Pro R1350 OpenWrt 24.10 RC1

Validated on the target device:
- QCA9888 5 GHz uses Xiaomi/QSDK YA105 board data (board ID 0x18/24)
- Unit-specific ART pre-calibration remains read-only and is loaded at runtime
- 802.11ac VHT80 2x2 reached 866.7 Mbps with zero retries in the reported test

Defaults on a fresh (-n) installation:
- 2.4 GHz enabled, SSID OpenWrt
- 5 GHz enabled, SSID OpenWrt-5G
- Country AU, channel 157, VHT80
- Wi-Fi remains open and root has no password until the user secures them

LED behavior mirrors Xiaomi stock:
- System: yellow while booting, blue when running
- Internet: off when WAN port 1 has no link; yellow when link exists but stock DNS checks fail; blue when Internet DNS works
- Interval: 8 seconds
- Stock DNS targets: api.miwifi.com, www.baidu.com, www.taobao.com
- Stock ping probes retained: 114.114.114.114, 180.76.76.76, 119.29.29.29, 223.5.5.5

Use sysupgrade -n for these fresh defaults. Back up configuration and keep serial/programmer recovery available.
Immediately set a root password and enable WPA2/WPA3 after first login.
