Set Default SIM for Mobile Data
If your Xiaomi phone keeps using the wrong SIM for mobile data, downloads and browsing can suddenly stop working on the plan you actually pay for. With two active SIM cards, MIUI needs one clear default data connection, otherwise apps may quietly try to load data through the wrong carrier. Picking a fixed data SIM stops that back and forth.
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.
Taking a Photo with the Camera App
Snapping a basic photo on a Xiaomi phone rarely causes trouble, but once you enable a color filter, lock focus manually, or switch away from the default Photo mode, the shutter button can seem to do nothing. Knowing which mode and settings are active before you tap the shutter prevents blurry or oddly filtered shots.
Turn On/Off Camera Quick Launch
Missing a fast-moving shot because unlocking your Xiaomi phone takes too long costs you the moment every time. Camera Quick Launch lets you jump straight into the camera app from the lock screen instead of swiping through your PIN or pattern first. When the option is off, a double press of the volume down button does nothing and you lose those extra seconds.
Set Up Parental Controls
If your kid keeps bypassing screen time limits or stumbling into age-inappropriate content on their Xiaomi phone, the built-in restrictions were probably never turned on. Xiaomi bundles this protection inside Digital Wellbeing & parental controls, but the setup wizard sits a few taps deep in the settings menu. Without running it once, none of the content filters or usage limits actually apply.
Connect to a Wi-Fi Network
If your Xiaomi phone shows no internet access or keeps prompting for a network password, the device usually just is not linked to any Wi-Fi yet. Mobile data alone will not give you access to a home or office network, and an inactive Wi-Fi radio hides every nearby network from the list. Once Wi-Fi is switched on, both private networks with a password and open public hotspots become selectable.
Unpair a Bluetooth Device
If a Bluetooth device keeps reconnecting even though you stopped using it, or a headset refuses to pair again after a failed connection, the old saved link is usually the cause. Turning Bluetooth off does not remove that link, only the paired list in the Bluetooth settings does. Once removed, the device drops out of the paired list and needs a fresh pairing before it can connect to your Xiaomi phone again.
Change Home Screen Grid Layout
If your Xiaomi home screen always shows the same number of icons per row, the app grid is set to a fixed layout, usually 4x6. Switching to a denser grid like 5x5 fits more icons per screen but makes each icon smaller.
Turn On/Off USB Debugging
If MyPhoneExplorer refuses to sync contacts or a rooting tool cannot detect your Xiaomi phone over cable, USB debugging is usually still switched off. The option only appears once Developer options are unlocked, and many users cannot find the toggle afterward. Leaving it enabled permanently also carries a small security risk you should know about.
Turn Automatic Date & Time On or Off
If your Xiaomi phone shows the wrong time after a trip or SIM swap, the automatic time sync is likely still active. Automatic date & time relies on network-provided time, which can lag or fail when signal is weak. Turning it off lets you set the clock manually instead.
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.
Custom Image on Always-on Display
If the pre-installed Always-on Display themes on your Xiaomi phone all look the same, you can swap them for a photo of your own. MIUI lets you pick any image from your gallery instead of the default clock designs. Once applied, you can still adjust the clock position, text color, and how battery or notification icons appear on top of your picture.