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Xiaomi

Guides for Xiaomi Poco F4

511 guides

Calls & Messages2

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.

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Storage & Backup2

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.

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System & Settings2

Turn On/Off Pop-up on Keypress

If every letter you tap on your Xiaomi keyboard flashes up in a small preview bubble, typing can feel slower and the screen looks cluttered. This preview comes from a keyboard setting called Popup on keypress, and it can get in the way when you type quickly in Messenger, WhatsApp or any other app. You can switch it on or off directly in the keyboard settings on your phone.

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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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Security & Privacy

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.

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Battery & Power2

Optimize Battery Usage

If your Xiaomi phone drains faster than usual, background apps and forgotten settings are often the cause. MIUI has a built-in scan that checks running processes and configuration and lists exactly what is costing you charge. You decide which of those suggestions actually get applied.

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Network & Connectivity2

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.

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Network & Connectivity2

Send Photos and Videos via Bluetooth

Sending a photo or video from your Xiaomi phone to a paired device sometimes stalls right after you tap Share, or the target device never shows up in the list. This usually comes down to picking the wrong sharing option or Bluetooth pairing not being active. The steps below use MIUI's file sharing menu, which works the same for pictures, videos and most other file types.

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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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Notifications & Focus2

Snooze App Notifications

When a chat app or delivery tracker keeps buzzing during a meeting, muting it completely isn't always what you want. MIUI lets you pause a single notification for a set time instead of turning it off for good. This keeps the alert coming back later without touching the app's notification settings.

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Apps & Installation2

Configure Individual System App Settings

When Security, Messages, or Camera on your Xiaomi phone keeps auto-updating or asking for permissions you never approved, a hidden per-app toggle in System app settings is usually the cause. Each preinstalled MIUI app, from Calendar to Recorder, carries its own switches for updates, notifications, and background data that do not show up on the regular app info screen. Finding the right toggle for the right app is the only way to fix the behavior without disabling the whole app.

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Network & Connectivity2

Set Up a Portable Wi-Fi Hotspot

If your Xiaomi phone still hands out a hotspot name and password nobody chose, other people nearby can guess it or connect without permission. A weak default SSID also makes it harder to spot your own hotspot among several devices in the same room. Setting a custom name and password fixes both problems and keeps the connection under your control.

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Network & Connectivity2

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.

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Apps & Installation2

Turn Off Suggestions in Recent Apps Menu

If your recent apps screen on a Xiaomi phone keeps showing extra tiles for Cleaner, Security scan, Deep cleaning or Manage Apps, a system suggestion feature is adding them automatically. This can make the app switcher feel cluttered and slower to scan through, especially if you only want to see your open apps.

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Other2

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.

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Network & Connectivity2

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.

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Photo, Video & Media2

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.

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Other

Fix Fisheye Distortion in Ultra Wide Shots

Ultra wide shots on your Xiaomi phone sometimes bulge at the edges, making straight lines look curved like a fisheye lens. This happens because the wide field of view stretches objects near the corners of the frame. The camera app can correct this automatically, but the setting is easy to overlook.

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Storage & Backup2

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.

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Security & Privacy2

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.

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Apps & Installation2

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.

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Accessibility2

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.

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Apps & Installation2

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.

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Calls & Messages2

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.

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