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.
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.
Share a Contact via Message or App
Retyping a phone number into a text message often introduces errors, especially with long international formats. On Xiaomi phones, the Contacts app lets you send a person's saved details directly through messaging or email without typing anything manually. This keeps every field intact and avoids typos on both sides.
Manage Displayed Calendar Accounts
If every linked account shows up in the Calendar app at once, work meetings and private appointments end up mixed together in one view. This happens because the Calendar app displays all synced accounts by default, with no separation between personal and work calendars. You can turn individual accounts on or off without removing them from the device.
Name Format for Call History
If some entries in your call log show the first name before the surname while others do the opposite, the phone app is mixing display styles from different contact sources. This happens often after importing contacts from a SIM, another account, or a backup. The call history keeps the format each contact was saved with instead of applying one consistent style.
Clear the Whole Call History
When missed, dialed, and received calls pile up on your Xiaomi phone, scrolling through the list to find one number gets tedious fast. Deleting entries one at a time barely makes a dent if you actually want a clean call log. MIUI offers a single action that wipes the entire history at once, and once it's gone, it's gone for good.
Rename a Contact Group
A contact group on your Xiaomi phone keeps the name you gave it when you first created it, even after you add or remove members over time. If that label no longer fits, MIUI lets you edit it without deleting the group or losing its contacts. Default groups like Family, Colleagues or Friends are locked and cannot be renamed.
Merge Duplicate Contacts
When contacts get saved by different apps or sync sources, the same person can end up listed twice in your Xiaomi contact list. This duplication clutters your call log, messages, and search results, making it harder to reach the right entry fast. MIUI includes a built-in way to link matching entries back into a single, clean contact.
Set Default Account for New Contacts
If you keep getting asked which account to save a new contact to on your Xiaomi phone, MIUI has no default target set. This happens when Google Account, Mi Account, and one or both SIM cards are all active on the same device. Every save then triggers a manual account pick, which slows down quick contact entry.
Assign a Photo to a Contact
When a contact shows only initials or a plain avatar during calls and messages, no photo has been linked to that contact yet. MIUI lets you attach an existing picture from your gallery instead of only allowing a new snapshot. Without that link, incoming calls and chat threads stay visually anonymous even if the contact already has a name and number saved.
Add Contacts to a Group
Groups on your Xiaomi phone stay empty until you actually assign contacts to them. You can add people either from a single contact's profile or from inside the group itself, and mixing up the two methods is where most confusion starts. Knowing which screen controls group membership saves you from re-adding the same contact twice.
Block a Number from Call History
Spam calls from fake lottery winnings or gambling subscriptions keep showing up in your call log even after you hang up. On Xiaomi phones, blocking a caller straight from that log is often faster than adding them manually through Contacts. Here's what triggers the block option and where it actually lives in the Phone app.
Add a Contact Shortcut to the Home Screen
Calling the same person every day shouldn't require opening the Phone app, searching your contacts and tapping through to their number each time. On MIUI you can pin a direct contact shortcut to your home screen so a call or message starts in just two taps. This helps most with family, coworkers or anyone else you dial constantly.
Send an SMS Text Message
On a Xiaomi phone there is no separate SMS app or SMS folder, so every text lands in the same Messages inbox as MMS content. Attach a photo or video to a text and MIUI silently switches the format to MMS without asking you first. That makes it hard to tell which messages actually went out as plain SMS and which ones used mobile data as MMS.
Answer an Incoming Call on the Lock Screen
If tapping the green phone icon does not pick up the call on your Xiaomi phone, you are likely missing the swipe gesture MIUI expects. The lock screen call button reacts to a drag motion, not a simple tap, so a short or sideways swipe leaves the phone ringing until it drops to voicemail. This mainly trips up people switching from a brand that uses tap-to-answer instead of swipe-to-answer.
Assign a Contact to a Speed Dial Number
If holding down a number on the dial pad does nothing on your Xiaomi phone, no contact has been linked to that speed dial slot yet. Speed dial only works once you connect a number manually to a saved contact. Without that step, the quick dial button stays empty and no call goes through.
Delete a Contact Group
If a contact group in the Xiaomi Contacts app is cluttering your groups list, you can remove it without losing the people inside it. Many users hesitate because they assume deleting a group also deletes the assigned contacts. In reality, only the group label itself gets removed, while every contact stays saved on the device.
Delete an Event in the Calendar App
If your calendar is cluttered with old appointments you no longer need, deleting individual events keeps things readable. Once removed, an event is gone for good and cannot be restored. On some Xiaomi phones the built-in Calendar app is replaced by Google Calendar, which uses a slightly different menu.
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.
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.
Show or Hide Week Numbers in Calendar
Scheduling an event and trying to figure out which calendar week it falls into turns into quick mental math every time. The Calendar app on Xiaomi phones can display the week number next to every row, but the option sits buried in a settings menu most people never open.
Share Contacts as File, Text or QR Code
Trying to send a saved contact to someone but not sure which sharing format actually works on their phone? Xiaomi lets you send a contact as a file, as plain text, or as a scannable QR code, and each option behaves differently depending on the app you pick. Picking the wrong format is the usual reason a recipient cannot open or save the contact properly.
Copy a Text Message
Need to reuse a phone number, code, or address from an SMS without retyping it? On Xiaomi phones the copy option for a text message only appears after a precise long press, and it is easy to miss if you tap the wrong spot on the bubble. Here is where the Copy command actually shows up inside the Messages app.
Turn Call Waiting On or Off
If you are already on a call and a second call comes in on your Xiaomi phone, a tone and a pop-up usually appear. When Call waiting is switched off, that second caller hears a busy signal instead and nothing shows up on your screen. With Dual SIM, this setting applies per SIM card, so one line can behave differently from the other.