Add a Birthday to a Contact
If the default Contacts form on your Xiaomi phone only shows phone number and email, there's no visible field for a birthday. That date option sits in a separate section that most people never open, so they assume it doesn't exist and skip it. Without it, you lose an easy way to keep birthdays tied directly to a contact card instead of a separate calendar entry.
Remove a Stored Fingerprint
If a fingerprint still unlocks your Xiaomi phone after you sold it, handed it to someone else, or just registered a bad scan, that print needs to go. MIUI stores several fingerprints under one name, so it is easy to remove the wrong one by mistake. Deleting a print always asks for your unlock pattern, PIN or password first, which trips up people who only remember using their finger.
Resize a Home Screen Widget
When a widget takes up too much space or looks squeezed on your Xiaomi home screen, the easiest fix is adjusting its size instead of removing it. Not every widget supports resizing, and some only offer fixed size steps rather than free dragging. Knowing which widgets react to resize handles saves you from rearranging your whole layout.
Mobile Data on Secondary SIM During VoLTE Calls
When you're on a VoLTE call with your primary SIM, mobile data can stay locked to that same line instead of switching to your secondary SIM. That leaves apps stuck loading or messages stuck sending mid-call. A dedicated toggle in the network settings decides which SIM handles data traffic while a VoLTE call is active.
Set Up Speed Dial for Calls
Dialing the same contact from a long list every time you need them wastes time when you only want to reach a favorite number fast. Speed dial on Xiaomi phones lets you call an assigned number with a single long press on the keypad, but it only works once a contact is linked to that digit. On Dual SIM devices you may also get asked which line to use if no default SIM for calls is set.
Turn Select to Speak On or Off
If Select to Speak stays greyed out or its icon never shows up in your navigation bar, the accessibility shortcut on your Xiaomi phone is probably still switched off. Once enabled, tapping the icon lets you select any text or image on screen and have it read aloud instantly. Turning it off again removes the icon without touching other accessibility settings.
One-Handed Keyboard Mode
Typing with one thumb on a large Xiaomi screen often means missing keys on the far side of the keyboard. The stock layout stretches across the full display width, so you end up stretching your thumb or shifting your grip with every message. Xiaomi's keyboard settings can shrink and pin the whole layout to the left or right edge instead.
View Device Certification Info
If you need your Xiaomi phone's FCC ID, model number, or other certification details for a return, insurance claim, or customs check, they are not printed on the box or shown in a quick settings toggle. This information sits inside a dedicated certification screen that most users never open on their own.
Turn On/Off Auto Brightness
If your Xiaomi screen keeps getting brighter or dimmer without you touching anything, Auto Brightness is reacting to the light sensor. You can still drag the brightness slider manually while the function stays active, which often causes confusion about which setting is actually in control.
Check for System Updates
If you swiped away the update notification on your Xiaomi phone or never saw it pop up, the update itself is not lost. MIUI still tracks it in the background, you just need to trigger the check yourself. This matters when a security patch or bugfix has been sitting unnoticed for weeks.
Manage App Permissions with the Permission Manager
If you're unsure which apps can reach your camera, microphone or location on your Xiaomi phone, permissions granted at install time often go unnoticed afterwards. Over weeks several apps quietly keep background access to sensitive functions with no obvious place to check it. The permission manager under Privacy protection lists this access per function and per app, so you can spot anything that looks off.
Shake to Auto-Arrange Home Screen Icons
Empty cells scattered across your Xiaomi home screen after uninstalling an app? Shaking the phone while in edit mode can pull the remaining icons together and close those gaps automatically. The feature, called Shake to fill empty cells, sits hidden in the display settings and can be switched on or off.
Split Screen on Xiaomi Phones
Split screen lets you run two apps side by side on your Xiaomi phone, so you can chat while browsing or take notes while watching a video. MIUI offers more than one way to trigger it, and not every app supports it the same way. Knowing how it behaves helps you decide when it actually saves time.
Turn On/Off Incognito Mode in Mi Browser
If Mi Browser keeps saving your search history and open tabs even though you wanted a private session, Incognito mode is probably switched off. Once active, the tab icon shows a small mask and the background turns dark purple, but many users never notice the toggle or find it again after closing the app. Without it enabled, every page you visit stays logged in your browsing history.
Create a New Event in the Calendar App
If a date only lives in your head, it disappears the moment you get distracted. The Calendar app on your Xiaomi phone lets you save events with a title, guests, location and repeat schedule, but many users only ever use the quick add-note shortcut and miss the full event options. Skipping the dedicated event category also means no reminder fires before the actual date.
Remove a Contact from Speed Dial
Speed dial slots on Xiaomi phones fill up fast, and once all numbers are taken you cannot assign a new one until an old entry is cleared. Removing a number from the list only deletes the shortcut, not the contact itself, but the option sits several menus deep inside the call settings and is easy to miss.
Clear RAM and Storage
If your Xiaomi phone feels sluggish or storage keeps filling up, junk files, app cache, and rarely used apps are often the cause. MIUI includes a built-in cleanup tool that clears RAM and storage in one pass, but what actually gets removed depends on which categories you select before confirming.
Turn Auto-Sync Data On or Off
If your Xiaomi phone burns through mobile data or drains battery faster than expected, background account synchronization is often the reason. This setting keeps your Google Account data, like contacts, calendar entries and photos, updated in the background at all times. Switching it off stops the drain immediately but also means new changes stop arriving until you sync manually.
Turn Tap Sounds On or Off
Every tap on a button, the Back key, or a menu item triggers a short click sound on your Xiaomi phone. If that noise gets distracting during calls, meetings, or at night, the Tap sounds setting is behind it and can be switched off just as quickly as it can be turned back on.
Add a Second Face Unlock Profile
If Face Unlock keeps failing because you wear glasses, a mask, or switch up your look, one stored face often is not enough. Xiaomi lets you register a second face profile so the sensor recognizes both appearances without asking for your PIN every time. Without this second entry, the phone falls back to Pattern, PIN or Password whenever your look does not match the saved data.
Turn Off Battery Saver Automatically After Charging
If Battery saver stays active even after your Xiaomi phone finishes charging, it keeps throttling performance and dimming the screen longer than needed. MIUI can switch Battery saver off on its own once the battery reaches a set charge level, so you don't have to remember to disable it by hand every time you unplug the charger.
Switch Recent Apps View
On Xiaomi phones, Recents stacks open apps vertically below each other by default, which can feel cramped if you are used to the classic card layout. MIUI lets you switch to a horizontal row instead, so apps line up side by side like in older Android versions. This setting sits in the Home screen options, not inside the multitasking menu itself.
Turn a Keyboard On or Off
A new keyboard downloaded from the Play Store does not automatically show up next to Gboard on your Xiaomi phone. Until you switch it on in the input settings, it stays hidden from the language switcher and typing keeps defaulting to the old keyboard. This usually happens with third-party layouts, handwriting keyboards, or apps installed after the initial setup.
Auto-download Updates via Mobile Data
If your Xiaomi phone keeps pulling system updates in the background while you are off Wi-Fi, mobile data usage can climb fast without warning. MIUI treats update downloads as automatic once a new version is detected, and a separate toggle decides whether mobile data counts as an allowed source for that download. Switching it off limits update downloads to Wi-Fi only, which matters if you are on a limited plan.