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Xiaomi

Guides for Xiaomi Redmi Note 9 4G

466 guides

Photo, Video & Media

Pocket Mode in the Camera App

If your phone's camera keeps opening or snapping photos while it's still in your pocket, stray touches on the screen are usually the cause. Pocket mode locks the touchscreen once the sensor detects the phone is stored away, blocking accidental swipes and taps. When the camera reacts to pocket movement or the screen stays unresponsive after you pull the phone out, this setting is worth checking.

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Calls & Messages2

SMS Delivery Reports Setting

Not sure if a text message actually reached the other person? Xiaomi phones can show a status report for every SMS you send, but the switch for it sits deep inside the Messages app and is easy to overlook. With the setting off you get no confirmation at all, even when the message went through without issues.

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Language & Input2

Show or Hide the Emoji Switch Key

If you type a lot of emojis, switching between the language globe and the emoji picker can slow you down on the MIUI keyboard. The globe icon and the emoji key share the same spot, so only one of them shows on the keyboard row at a time. Turning on the emoji switch key swaps that icon while quick language switching still works by holding the space bar.

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Other2

Enterprise Mode

If you spot Enterprise mode buried in your Xiaomi settings and have no idea what switched it on, you are not alone. The feature is built for companies that want to restrict which apps or websites an employee device can reach, and in some setups it can also report device activity back to an administrator. On a private phone that was never enrolled by a company, this toggle usually just sits there unused, which raises the question of what it is doing and whether it is safe to leave alone.

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Notifications & Focus2

Change Alarm Tone

If your Xiaomi alarm keeps ringing with the same generic tone or the Nature alarm sound never changes, the ringtone categories in the Clock app are likely the reason. Some categories, like Nature alarm, only rotate through different sounds when the phone has an active internet connection. Without that connection, the alarm falls back to a stored default tone instead of downloading a new one.

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Photo, Video & Media

Allow Gallery Access to SD Card

If Gallery on your Xiaomi phone refuses to save new photos or won't let you delete files on the SD card, it usually means storage access was never granted. Android blocks apps from writing to external storage until you confirm the permission for that specific card. Until you approve it, Gallery can only display existing files but not create, move or remove anything on the card.

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Notifications & Focus2

Turn Lock Screen Notifications On or Off

Hiding lock screen notifications on your Xiaomi phone keeps message content away from prying eyes, but it also means pop-up alerts stop appearing when the screen is locked. Instead you only see small icons in the status bar, so you have to unlock the phone to check what actually happened. This trade-off between privacy and quick alerts confuses a lot of users switching the setting for the first time.

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System & Settings2

Set Snooze Time and Repetition

If your Xiaomi alarm keeps snoozing for too long or not often enough, the default snooze interval and repeat count are likely not adjusted to your needs. MIUI lets you fine-tune both values, but the option sits several menus deep in the alarm settings.

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Security & Privacy2

Show or Hide Password Characters While Typing

On Xiaomi phones, every character you type into a password field flashes briefly on screen before turning into a dot. If you unlock accounts in public, on a video call, or while someone else can see your display, that brief character preview can expose your password to anyone nearby.

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Other2

Remove a Member from a Contact Group

If a contact still shows up in a group even though you no longer want them there, the fix is not to delete the contact but to unlink them from that specific group. On Xiaomi phones this distinction confuses people because the removal option sits inside the group menu, not in the contact's own profile screen.

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Display & Home Screen2

Set Always-on Display Duration

If your Always-on display only flashes for a few seconds after you tap the screen, it is set to the short timer instead of staying on permanently. On MIUI you can choose between a brief 10-second preview and a version that stays active the whole time your phone is locked or in standby.

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Display & Home Screen2

Remove Google Search Bar from Home Screen

After the first setup of a new Xiaomi phone, a Google Search bar sits on the home screen by default and takes up space you might want for widgets or app icons. Many people assume it is a fixed part of MIUI and leave it there without checking. It is actually just a removable widget, so getting rid of it does not require digging through any settings menu.

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Network & Connectivity2

Turn Location Access On or Off

If maps, weather, or camera apps suddenly stop finding your position on a Xiaomi phone, the general location toggle in MIUI settings might be switched off. Turning it off blocks GPS for every app at once, even those you already granted permission to use your location. This differs from per-app location permissions, which stay untouched but simply can't function without the master switch.

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System & Settings2

Turn Off Developer Options

If Developer options keeps popping up in your Xiaomi settings even though you only enabled it once for a quick fix, it usually just needs to be switched off inside its own menu. Leaving it active keeps USB debugging and other low-level toggles exposed, which can interfere with app checks or banking apps. Turning it off hides the whole menu again until you reactivate it through the hidden tap sequence.

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System & Settings2

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.

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System & Settings2

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.

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Calls & Messages2

Missed Call Reminders: Turn On or Off

If a missed call slips by unnoticed until hours later, missed call reminders are probably switched off or set to repeat only once. MIUI can nudge you again about an unanswered call, and the number of repeats is adjustable. Without this setting active, a single missed call notification is easy to swipe away and forget.

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System & Settings2

Restart the Xiaomi Smartphone

If apps on your Xiaomi phone start lagging, background downloads get stuck, or the interface feels sluggish after days of uptime, a restart usually clears the problem. MIUI keeps processes and cached data running in the background, and over time this can slow down the whole system. A clean reboot forces MIUI to close every open app and rebuild its memory from scratch.

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Notifications & Focus2

Set a New Alarm

Waking up on time with a Xiaomi phone means finding the right spot to add a repeating schedule, a custom label, or a different ringtone for each alarm. Many users only set a one-off alarm and miss the options for weekday repetition, vibration, or automatic deletion after the alarm rings. Getting these details wrong means the alarm either fires on the wrong days or disappears after a single use when you actually wanted it daily.

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Display & Home Screen2

Change Wallpaper on Home Screen

Tapping and holding the home screen only gives you a handful of preset wallpapers to pick from. If you want a specific photo from a particular folder set as your background, that shortcut alone won't get you there.

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Notifications & Focus2

Adjust Ringtone Volume for Calls and Notifications

If calls ring too loud while notifications stay silent, the culprit is usually the separate volume sliders inside Sound & vibration. Xiaomi phones control ringtone, reminder and notification volume independently, so lowering one slider does not affect the others. This mismatch often causes missed calls or alerts that trigger at the wrong volume.

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Photo, Video & Media

Enable Reading Mode in Mi Browser

Bright white pages in Mi Browser can strain your eyes during long reading sessions, especially at night. Xiaomi's reading mode swaps sharp whites for a warmer tone and dims contrast to reduce eye strain, but many people miss the intensity slider that controls how strong the effect actually is. Without adjusting it, the change can feel too subtle or too aggressive.

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Network & Connectivity2

Turn Contact Sharing via Bluetooth On or Off

When you pair your Xiaomi phone with a car radio, the contact list sometimes stays empty even though the Bluetooth connection shows as active. That happens because MIUI keeps Contact sharing separate from the general Bluetooth toggle, so voice dialing and steering-wheel controls have no phonebook to pull from until you enable it. The same setting can also keep sharing your address book with a paired device after you no longer want it to.

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Other2

Change Camera Picture Quality

If your camera storage fills up fast or photos take too long to share, the picture quality setting in the MIUI camera app is often the reason. Xiaomi's camera defaults to a high resolution that produces large files, even when you only need a quick snapshot. Switching between High, Standard, and Low lets you balance sharpness against file size for each situation.

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