How to Set Up Xiaomi Challenges: The Complete Guide to 2026

Modern smartphones Xiaomi on the basis MIUI They offer dozens of settings for working with phone calls, from basic volume to advanced features like recording conversations or filtering spam. However, many users use only a small part of these features, faced with problems such as quiet sound, missed calls or incorrect work. SIM-This article will help you understand all the nuances of configuring calls on Redmi devices, POCO Xiaomi – from elementary parameters to hidden “chips” that are not written in the official instructions.

We will look not only at the standard phone menu call settings, but also at little-known tricks: how to turn on the phone. HD-sound for crystal clear communication, set up automatic detection of spam numbers, use Dual SIM No conflict, and also solve typical problems like "calls are coming, but the interlocutor can't hear." MIUI 14/15 Android 13/14 and tested on models from Redmi Note 12 Xiaomi 14 Pro.

We will focus on compatibility issues: why some firmware does not allow recording conversations, how to circumvent the limitations of operators on VoLTE, and what to do if incoming calls stop working after the system update. For convenience, each section contains step-by-step screenshots (descriptions of paths in the menu), warnings about possible errors and practical tips from service engineers.

1. Basic call settings in MIUI

Let's start with the basics: where to find the call settings menu and what settings to check first. Most of the options are hidden in the Phone app (the handset icon), but some critical features are, for example, selection. SIM-Default cards – hidden in system settings.

Open the Phone app, click on the three dots in the top right corner and select Settings. Here you will see 5 key sections:

• 📞 Quick Answers – Message templates when a call is rejected (can be edited)
• 🔊 Sound and vibration – the volume of the call, the melody, the vibration response
• 📱 SIM-cards - choice of card for outgoing, roaming, mobile data
• 🛡️ Protection and blocking – blacklist, spam filtering
• ⚙️ In addition – recording conversations, notifications about missed

Please note the volume of the call - in MIUI 14+ This is where the Adaptive Sound option comes in, which automatically increases the volume in noisy places, POCO X5) This function is unstable and can cause distortion of sound at maximum volume.

⚠️ Warning: On devices with Harman Kardon speakers (such as the Xiaomi 13 Pro), factory call settings are often understated. Check volume level in Settings → Sound. → Media volume – it should be at least 70% for comfortable perception.

2.Tune in. SIM-maps and network priorities

If your Xiaomi supports two of your SIM-cards (Dual) SIM), It's important to set their priorities right, and by default, the system can use the card that has less money for outbound calls, which leads to unexpected costs:

1. Go to Settings. → SIM-maps and mobile networks
2. Select Outgoing Calls and set Ask Always or specify the main one SIM
3. In the Mobile Data section, disable data transfer for secondary SIM, If you don't use it for the Internet
4. Check Roaming settings – on some tariffs, automatic roaming can block incoming

For stable operation of calls it is critical to choose the right network mode.

• 📶 4G (LTE) — Better balance of communication quality and energy consumption
• 📞 3G — Only if there is no coverage in your area. 4G (Calls will be more stable, but slower than the Internet)
• ⚡ 5G — Turn on only when the coating is good (can put the battery down faster)

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If incoming calls are lost after changing the network mode, restart the phone or manually select the operator in the settings. SIM-map.

3. Advanced functions: recording conversations and HD-sound

One of the most popular features is the recording of telephone conversations. MIUI It is implemented in an unobvious way:

1. Open the phone application → Settings → Recording of conversations
2. Enable the option to Record automatically or select Write for selected numbers
3. Specify the location of the file (internal memory or storage). SD-map)
4. In some regions, you will need to confirm that you are notifying the interviewee about the recording.

Important nuances:

• 📱 Nana POCO F4/F5 redmi K50 The recording only works when VoLTE is turned on
• 🔇 In some countries (e.g. the EU), the default recording function is disabled due to privacy laws.
• 📁 Record files are stored in a folder MIUI/sound_recorder/calls occupy ~1.5 MB/minute

Another "trick" — HD-Sound (VoLTE) to activate it:

1. Go to Settings. → SIM-maps and mobile networks → [choose SIM] → Enable VoLTE
2. Make sure that the operator supports the technology (list: MTS, Beeline, Tele2, MegaFon)
3. If the option is inactive, update the firmware or contact the operator to activate the service.

4. Spam Filtering and Blacklisting

MIUI It has a built-in spam blocking system, but by default it's not working at full capacity to set up effective protection:

1. Open the phone. → Settings → Protection and lockdown
2. Enable Spam Filtering and Show Spam Warnings
3. In the Blacklist section, add numbers manually or import from messages.
4. Activate Hidden Number Blocking if you receive a lot of calls from unknown people ID

For extended protection:

• 📲 Install the Truecaller app (integrates with the MIUI And it shows the names of spammers)
• 🔄 Regularly update the spam number database in Settings → Protection and lockdown → Update the base
• 📵 Turn on Do Not Disturb Unknown Numbers at Night

⚠️ Attention: Spam filtering uses additional mobile data (~5 MB/month to check numbers in the cloud base Xiaomi. with limited traffic, it is better to use the offline database or disable the option.

Enable spam filtering|Add problematic numbers to the blacklist|Update the database of spam contacts|Set up "Do Not Disturb" for unknown numbers|Install Truecaller for Advanced Protection-->

5. Solving typical call problems

Even after setting up correctly, Xiaomi users may face typical problems, including the most common and ways to solve them:

If the problem persists after all manipulations, reset the network settings:

1. Go to Settings. → SIM-maps and mobile networks → Resetting network settings
2. Confirm the action (it will erase the history of calls and saved Wi-Fi networks)
3. Restart the device and check the call work

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After the update MIUI missing incoming calls, try to manually select the operator in the settings SIM-Maps or roll back to the previous version of the firmware.

6. Optimization of sound and vibration

The sound quality of a call depends not only on the network, but also on the settings of the device itself. 13T Or the Redmi Note 12 Pro.+) It can significantly improve voice perception:

• 🔊 Enable Voice Amplification in Phone Settings → Sound and vibration → Voice reinforcement
• 🎧 Use Adaptive Sound (but turn off when wheezing occurs)
• 📱 For the headset, activate Bluetooth Sound Improvement in the Connected Device Settings
• 🔇 Set up the Equator in Settings → Sound. → equalizer → Voice (increase the average frequencies)

For vibration:

• 📳 Select the intensity in Settings → Sound. → Vibration on call (optimally: “Average")
• 🔄 On models with a linear vibrator (for example, Xiaomi 14) vibration patterns are available – choose Classic for the best tactile response.

⚠️ Attention: On devices with AMOLED-With screens (all flagship Xiaomi models), long calls at maximum brightness can cause the matrix to burn out. Use automatic brightness adjustment or manually reduce it during conversations.

7. Hidden functions and life hacks

V MIUI There are a few hidden opportunities to work with calls that few people know about:

• 📞 Quick response voice: During the incoming call, say "Reply" or "Discard" - the system recognizes the command (works only on Chinese firmware, on global you need to install Google Assistant)
• 🔄 Automatic response: In the phone settings, you can turn on the answering machine with your voice message (path: Settings) → Additionally. → Voicemail)
• 📱 Duplication of calls: If you have two SIM-You can set up the duplication of the incoming cards for both (good for work). Activated by ##4636## → Phone information → Add duplication
• 🔇 Quiet Notification: When you turn the phone down, the call will vibrate without sound (includes in Settings) → Additionally. → Quiet regime when turning over)

For technically savvy users:

• 🛠️ Through ADB You can unlock hidden codecs to improve sound quality: adb shell settings put global volte_vt_enabled 1 adb shell settings put global enhanced_4g_mode 1 (Developer rights are required and USB-debugging)
• 📡 On some firmware, you can manually set PreferredNetworkMode for forced use. 4G: adb shell am broadcast -a android.intent.action.CALL_BUTTON -e network_mode 9 (9 = LTE only, 10 = LTE/3G/2G)

8.Setting up calls for older people

If Xiaomi is used by an older person, it is worth simplifying the interface and increasing the controls:

1. Activate the Mode for the Elderly: Settings → Special facilities → Regime for the elderly
2. Increase the font size and icons: Settings → Screen. → Text size (select "Very large")
3. Set up large buttons in the Phone app: Phone settings → Registration → Big buttons.
4. Enable voice control: Settings → Voice assistant → Voice set

Additional recommendations:

• 📞 Install large widgets for quick access to contacts on the main screen
• 🔊 Set the maximum volume of the call and turn on the flash when the call is made.
• 📵 Disable all unnecessary notifications except incoming calls and SMS
• 🔋 Activate Economical mode to increase the time without recharging

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For maximum convenience, older users will be suitable models with a physical button SOS (Like Redmi. A2+) — It allows you to quickly call a pre-saved emergency number.

FAQ: Frequent questions about setting up calls