Turn Wi-Fi Auto Reconnect On or Off
If your Xiaomi phone keeps rejoining a Wi-Fi network you would rather avoid, or the connection drops every time you walk back into range, the Connect automatically option tied to that specific network is behind it. MIUI turns this behavior on by default for every network you have ever joined, and it stays active until you switch it off for that network individually. That is also why disabling it on one network never changes the behavior of the others.
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.
Schedule Do Not Disturb Automatically
If Do Not Disturb only works when you remember to switch it on, notifications still slip through during meetings or overnight. MIUI can run silent or Do Not Disturb mode on its own recurring schedule, but the settings for start time, repetition and mode type are easy to miss.
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.
Change Contacts App Theme (Light or Dark)
On Xiaomi phones, the Contacts app can keep its own light or dark look even after you switch the phone-wide display mode in system settings. That mismatch happens because the app ships with a separate theme option that overrides the system default. Calls and messages screens can stay bright at night or dark during the day because of it.
Auto-Disable Ultra Battery Saver at 50% Charge
Once your Xiaomi phone reaches around 50% charge, Ultra battery saver can switch itself off without asking, dropping all the restrictions it just applied. If you rely on the extreme power-saving mode staying active until you manually turn it off, this automatic behavior gets in the way. The setting controlling this is separate from the regular battery saver toggle.
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.
Turn Portable Wi-Fi Hotspot On or Off
If other devices cannot get online through your Xiaomi phone, the portable hotspot might simply be switched off or still using a network name and password you do not remember. This feature turns your mobile data connection into a Wi-Fi network for laptops, tablets or other phones nearby. Once it is active, the tricky part is usually finding the right toggle again, since it sits inside a settings screen most people only visit once.
Turn Auto-sync for Photos and Videos On or Off
If your Gallery keeps pushing photos and videos to Xiaomi Cloud even on mobile data, your storage plan fills up fast and your data allowance takes a hit. The sync behavior is controlled from within the Gallery app and tied to the Mi account signed in on the phone. Turning it off stops new uploads, but files already sent to the cloud stay there until you remove them yourself.
Turn Quick Responses On or Off
When a call comes in and you cannot pick up, MIUI can send the caller a short text instead of just cutting them off. If that automatic reply keeps firing at the wrong moments or refuses to trigger at all, the Quick responses feature needs a check.
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.
Install an App from the Play Store
Setting up a new Xiaomi phone often means hunting for the right way to add apps like WhatsApp, a cookbook, or a new game. Search results in the Play Store can show several similar-looking entries, so picking the correct one before tapping Install actually matters.
Zoom In and Out in the Camera App
If the pinch gesture in the Camera app feels imprecise or the zoom slider does not react as expected, framing a shot gets frustrating fast. On Xiaomi phones the zoom level can be controlled either with two fingers on the screen or with a dedicated slider next to the shutter button, and mixing up both methods often causes jumpy results. Knowing which control belongs to which situation makes zooming smoother and prevents accidental resets while shooting.
Turn Camera Shutter Sound On or Off
Every photo on your Xiaomi phone triggers a shutter click, even in a quiet room or during a video call screenshot. The sound comes from the camera app itself and has nothing to do with your ringtone or notification volume, so muting the phone alone will not silence it.
Block a Contact (Calls & Messages)
If someone keeps calling or texting after you have asked them to stop, deleting the contact does not actually stop the calls or messages from reaching you. MIUI has a separate blocklist function inside the Contacts app that silently rejects both. Note that blocking only works for numbers already saved as a contact, not for random unsaved numbers.
Turn On/Off Chat Features (RCS) in Messages
If your texts go out as plain SMS without read receipts, typing indicators, or media previews, Chat features are probably switched off in the Messages app. This RCS-based option upgrades regular texting with messenger-style extras, similar to WhatsApp, but only works when both people have it active. Some carriers turn it on automatically on a Xiaomi phone, others leave it off until you enable it yourself.
Turn JavaScript On or Off in Mi Browser
If buttons stop responding, menus refuse to open, or entire pages appear blank in Mi Browser, JavaScript is likely disabled on your Xiaomi phone. Most modern sites rely on this scripting language for interactive elements, so a wrong toggle in your browser settings breaks navigation fast.
Move a Widget on the Home Screen
When a new widget lands right on top of an app icon or pushes your favorite shortcuts to another page, the home screen on your Xiaomi phone turns messy fast. Every widget blocks out its own grid space, so repositioning one often forces nearby icons to shift too. Getting the placement right the first time saves you from constantly rearranging your layout afterward.
Set Up an App Timer
If an app on your Xiaomi phone keeps eating hours of your day without you noticing, MIUI does not limit it automatically. Digital Wellbeing only tracks usage in the background unless you configure a timer yourself for that app. Without that timer, games or social media apps stay open all day, no matter how long you actually meant to use them.
Show or Hide Holidays in Calendar
If your Xiaomi calendar looks packed with public holidays you never asked for, real appointments and reminders get buried fast. This clutter often comes from a default setting that pulls in every regional or national holiday for your account. Turning that display on or off only takes a moment once you know where MIUI hides the switch.
Sort Call History by First or Last Name
If your Xiaomi call log jumps between names in an order that does not match your contacts list, the first/last name setting is likely mismatched with how you saved those contacts. This makes it harder to spot a recent call quickly, especially when several contacts share a first name or you saved people by surname. The display order in the call log can be changed independently from how contacts are named.
Allow or Deny Face Unlock When Screen Lights Up
If your Xiaomi phone unlocks itself just because the screen turned on for an incoming message or notification, Face unlock is reacting to every wake event instead of a deliberate unlock attempt. This can expose notification content or apps to anyone glancing at the display. The setting controlling this behavior sits inside Face unlock security options and is easy to miss.
Reset Camera Settings to Default
If your Xiaomi camera keeps producing blurry shots, odd colors, or a shooting mode you no longer understand after trying out filters and manual adjustments, restoring the default configuration usually fixes it. This clears every custom change you made in the camera app without touching photos or videos already saved on your phone. It is the fastest way to undo settings that got out of control after too much tinkering with exposure, resolution, or scene modes.
Add a Print Service
If a print dialog on your Xiaomi phone shows no printer at all, no print service is registered in MIUI yet. Most phones only come with a driver for Epson devices, so printers from other brands stay invisible until you install their own service. Without that step, apps like a PDF viewer or browser can never send a job to your printer.