Follow MIUI Updates Tracker on Telegram to get notified when a new ROM is out!
MIUI 8.8.30 Weekly Official Update for Mi MIX 2S China (polaris)
This page shows the 8.8.30 update only. If you're looking for other updates check here.
Note: All files listed here are official untouched MIUI ROMs. It's not owned, modified or edited by Xiaomi Firmware Updater.