Select Network Manually
When you travel abroad and your phone keeps hanging on a weak carrier, automatic network selection is usually the cause. MIUI picks a network by signal priority, not by actual reception quality, so calls drop and data stalls even though a stronger carrier is available nearby. Switching to manual selection lets you pick that carrier yourself instead of waiting for the phone to reconnect.
Switch Between Old and New Control Center Style
If your Xiaomi phone still shows the older two-panel layout after an update, or you miss that classic view after switching to the newer simplified overview, the display style does not change on its own. It sits behind a separate setting that many people never open. Notifications and quick toggles stay mixed together until you pick the layout you actually want.
Turn Off Wi-Fi and Bluetooth Scanning for Location
Even with Wi-Fi and Bluetooth switched off, your Xiaomi phone can still scan nearby networks and devices to sharpen its location fix. Apps with location permission trigger this background scanning automatically, keeping your radios active more often than expected. If you want tighter control over when your phone searches for networks, the scanning setting needs to be adjusted separately from the Wi-Fi and Bluetooth toggles.
Delete an Album in Gallery
Deleting an album on your Xiaomi phone also deletes every photo and video still stored inside it. This catches a lot of people off guard when they just wanted to tidy up their Gallery app and end up losing media they meant to keep. Knowing which albums are safe to remove and which ones hold originals is key before you tap delete.
Back Up Phone Data to Google Drive
If your Xiaomi phone gets reset, lost or swapped for a new one, contacts, messages and app data disappear unless a backup exists somewhere else. MIUI has a built-in option to save that data to Google Drive, but the toggle sits buried in the general settings and is easy to miss until you actually need it.
Switch to Scientific Calculator Mode
You open the Calculator app on your Xiaomi phone expecting only basic math, but functions like sine, cosine, tangent, square roots or Pi are nowhere to be found. Many users assume the app simply lacks these tools, when in fact they are hidden behind a display mode that most people never trigger. Without knowing the trick, you end up switching to a third-party app for calculations your phone already supports.
Turn On App Lock
If anyone can open your banking, messaging, or gallery apps just by unlocking your phone, sensitive content stays exposed. Xiaomi phones include a separate app-level lock that adds a second layer of protection on top of your screen lock. Setting it up wrong, or skipping the fingerprint option, often leaves some apps unprotected.
Fingerprint Shutter: Enable or Disable
If your Xiaomi phone snaps a photo every time you rest a finger on the fingerprint sensor while the Camera app is open, the fingerprint shutter option is turned on. Some users only notice this after an accidental shot ends up in the gallery, others want to turn it on deliberately for a steadier one-tap trigger. Either way, the setting lives inside the Camera app itself, not in the general phone settings.
Manage Updates for System Apps
If your Xiaomi phone keeps nagging you about system app updates - or stays silent when new versions are actually ready - the System apps updater settings are probably not set the way you want. MIUI lets you control whether update notifications show up, whether updates install automatically, and whether downloads run on Wi-Fi only or also over mobile data. Leaving these settings on default can mean unexpected data usage or missed fixes.
Change Font Size
Reading long texts on a small screen strains your eyes if the system font stays too small, and cranking up brightness alone does not fix that. On Xiaomi phones the text scale sits in its own menu, separate from general display settings, which is why many people never find it. MIUI offers six size steps instead of a simple small/medium/large switch, so getting the right level takes a bit of trial and error.
Set a Timer in the Clock App
Setting an alarm just to catch the end of an eBay auction wastes a reminder slot and still leaves you guessing when to check back. The Timer function in the Clock app on your Xiaomi phone counts down a fixed period and alerts you the moment it is over, without touching your alarm list. Many users overlook this tool because it sits next to the alarm and stopwatch tabs and rarely gets used.
Mark Contact as Favorite
If a contact you call or message often gets buried in a long list, you probably haven't set it as a favorite yet. Favorites move straight to the top of the Contacts app and speed up dialing from the Phone app. It's a quick toggle, but easy to miss since it's tucked inside the contact detail view.
Show Emojis in the Symbols Keyboard
On Xiaomi phones the symbols keyboard can display your most recently used emojis for quicker access, but that suggestion strip stays hidden by default. The Mi keyboard needs this behavior turned on separately before recent emojis appear next to the symbols and numbers.
Turn Personalized Ad Recommendations On or Off
If ads on your Xiaomi phone feel oddly tied to your recent searches or app activity, Personalized ad recommendations is the setting behind it. Switching it off does not lower how many banners you see, it only stops MIUI from matching them to your interests and usage data.
Rename a Paired Bluetooth Device
When several Bluetooth accessories are paired to your Xiaomi phone, the device list can quickly fill up with cryptic model numbers or partial MAC addresses. Telling a pair of earbuds apart from a car stereo or a fitness tracker gets difficult once the default names look identical. Renaming each paired device gives you a clear label instead of guessing which entry belongs to which gadget.
Add a New Contact
Saving a new phone number on a Xiaomi device sometimes feels confusing because the Contacts app hides extra fields like birthday, address or company behind a single Add button. Many users only enter a name and number, then wonder later why the birthday never shows up in the calendar. The trick is knowing which fields to expand before you save the entry.
Power Button Ends Call Setting
Ending a call on a Xiaomi phone usually means tapping the red hang-up button on screen, which is awkward one-handed or when the display is hard to reach. MIUI has a hidden accessibility toggle that lets you end calls with the power button instead, but it is turned off by default and easy to miss in the settings.
Turn a SIM Card On or Off
On a dual SIM Xiaomi phone, calls or texts sometimes keep arriving on a line you no longer want to use, or you want to silence one number without pulling the physical card out. MIUI lets you deactivate a SIM slot completely, which stops all calls, messages and mobile data on that line until you switch it back on.
Turn On/Off Emergency SOS
If your Xiaomi phone fires off an emergency text every time you grab it too fast, Emergency SOS is likely reacting to five quick presses of the power button. The feature sends your location and, if you choose, a summary of your last hour of call activity to selected contacts. Turning it off - or setting it up properly first - stops accidental alerts and unwanted location shares.
Send MMS Message
Xiaomi Messages does not offer a separate MMS button, so it is easy to assume attachments go out as a normal text message. As soon as you add a photo, video, or .gif to a chat, the app switches the message to multimedia format automatically. If your carrier has MMS disabled or your mobile data is off, that message can silently fail to send.
Set the Time Manually
If the clock on your Xiaomi phone keeps jumping back to the wrong hour right after you edit it, the Use network-provided time toggle is still active in the background. Xiaomi phones pull the time straight from your mobile network or Wi-Fi connection, so any manual change gets overwritten within seconds. That sync option has to be switched off first before a custom time will actually stick.
Set Default SIM Card for Outgoing Calls
Every time you dial a number, your Xiaomi phone pops up a menu asking which SIM card to use for the call. If you only ever tap the same option anyway, that extra confirmation step just slows down dialing. A fixed default SIM removes the prompt for good.
Reject an Incoming Call
If a call comes in at a bad moment on your Xiaomi phone, you don't have to answer it or wait it out. The red decline icon on the incoming call screen lets you dismiss it right away, but only if you swipe correctly. Miss the gesture and the call keeps ringing or gets answered by accident.
Rename a Fingerprint
Every fingerprint you add on a Xiaomi phone gets a generic label like Finger 1 or Finger 2, which makes no sense once you have three or four saved. If you cannot tell your thumb from your index finger in the list, renaming them is the only way to keep the Fingerprint unlock screen readable.