Mi Mix 3 (PERSEUS) received MIUI 11 – Android 9 (Pie) – MIUI 11.0 – China Stable MIUI V188.8.131.52. PEECNXM released!
How to update MIUI on Xiaomi devices?
Why my battery drains after update?
OTA (787 MB): apply for v10.3.3.0.PEECNXM
How to remove Xiaomi MIUI system ads?
Welcome to MIUI 11
ISSUE#1: “Choose update package” and “Reboot to Recovery mode” options gone in Updater on 184.108.40.206
SOLUTION#1: After clicking 10 times on the big colored “11” in Updater, “Additional update features” activated and missing options are visible again.
ISSUE#2: WiFi usage in Battery results seems active all the time even WiFi is disabled.
SOLUTION#2: Disable option: “Settings / Additional settings / Privacy / Location / Scanning / WLAN scanning”
ISSUE#3: Finger print stops working after 220.127.116.11
SOLUTION#3: Just restart your phone.
ISSUE#4: Battery drain after Android 9 (Pie) Update.
SOLUTION#4: Apply steps in following article :Battery Draining Tips
*Reinstalling same (currently installed) ROM with “Download latest package” option from “Updater” might solve some kind of battery draining issues and any weird issues after upgrade. No data will be lost, it will take very short time to reinstall.
ISSUE#5: “Mi Video” crashes while saving slow motion video in any Pie update.
SOLUTION#5: Use device with English language as a temporary fix.
ISSUE#6: “No signal” issue while using Bluetooth car interface after Pie update.
SOLUTION#6: As a temporary fix simply put your SIM from Slot 1 to Slot 2.
How to remove system Ads in MIUI?