Xiaomi smartphones and their budget sub-brands Redmi have been leading the market for many years thanks to a combination of features and price. One feature that often becomes crucial when choosing a device for business people or those who value control is the built-in ability to fix telephone conversations. However, recent versions of the Android operating system and the MIUI shell have undergone significant changes that affect the operation of this option.
Users who upgrade to current versions of software may find their recording method no longer working or disappearing from the menu, as Google’s privacy policy tightens, which restricts apps from accessing the microphone during a call, leaves behind a few loopholes and ways to keep the conversation important.
In this article, we will discuss in detail the standard methods, settings of the region, as well as alternative solutions for models Redmi Note, Redmi 12, Redmi 13 and other relevant devices. You will learn how to activate hidden functions and what nuances to consider when using third-party software.
Staffing capabilities of the recorder in MIUI and HyperOS
In most cases, Google’s standard Phone app, which is pre-installed on global firmware versions, already contains the necessary functionality, but it is often hidden from the user’s eyes by default. To check for this option, you need to open the call app and go to the settings menu, which is usually indicated by three dots in the upper right corner of the screen. Inside the Call Record section, you can activate automatic fixation of incoming or outgoing calls.
It is important to understand that automatic recording may not work properly on some models due to operating system limitations. If the activation slider is missing or not working, this means that there are strict restrictions in your region or for your Google account, in which case the system can warn the interlocutor with a voice message about the beginning of fixation, which is not always convenient.
The sound quality of embedded devices is usually high, as the system records the internal audio stream rather than the sound through the microphone. However, files are stored in a specific format that may require conversion to be played on other devices. The path to saved files is often hidden in system folders, access to which is limited.
MIUI and the new HyperOS have different permission logics, so if you've just upgraded, you should recheck all the permissions for the Phone app, and sometimes when you update, you reset the settings and you have to manually enable the function.
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If the standard record doesn’t work, try clearing the Phone app cache through the Apps menu → All Apps → Phone → Memory → Clear.
Replacement of the region to activate the function
One of the most effective ways to return the ability to record conversations without installing additional software is to change the region in the settings of the smartphone. The logic is that in some countries, the law allows recording conversations without necessarily warning the interlocutor, and the firmware adapts to these norms. To activate this feature, you need to go to the Settings menu → Additional settings → Region.
Most users choose countries such as India, Pakistan, Singapore or Malaysia. After a change in region, the smartphone interface may partially change, new widgets and services will appear, specific to the selected country, at which point the Phone application may unlock hidden functionality that was not available for your main region (for example, Russia or Europe).
⚠️ Attention: Changes in region may affect some local services, weather widgets and news feeds. Once the call record is activated, you can try to return the region, but in some versions, you can also use the new data. MIUI function may disappear again.
It’s worth noting that this method doesn’t work on all firmware versions; Google’s latest security updates to Google Play Services have learned to block this feature at the system library level, regardless of the region it chooses, but for many Redmi users with Android 11-13, it remains a valid option.
If you don't have an option after changing your region, try restarting your device, sometimes it takes time for the system to use new configuration files, and make sure the Phone app has all the necessary microphone and memory permissions.
Use of third-party applications for recording
When regular funds are powerless, third-party apps come to the rescue, but Android's security policies since version 10 have limited the ability to record your voice or require hands-free access, including SKVALEX's Call Recorder, Appliqato's Automatic Call Recorder, and TapeACall.
To fully work such applications often require special permissions through ADB (Android Debug Bridge) or obtaining superuser rights (Root). Without these manipulations, the application will be forced to use a microphone to record sound from the speaker, which significantly reduces quality and can lead to echoes. The instructions for connecting through ADB look difficult for a beginner, but allows you to bypass many locks.
- 📱 Call Recorder SKVALEX — One of the most powerful solutions that requires customization ADB access to the system audio stream, but providing the perfect quality.
- 🎙️ Automatic Call Recorder is a popular application with a simple interface that tries to automatically choose a recording method, but often requires the speakerphone to be turned on.
- ☁️ TapeACall works on the principle of conferencing, recording a conversation to your server, which is convenient, but requires a paid subscription for long conversations.
When you install these programs, the system can issue security alerts, which is the standard Android response to applications that request access to calls, and if you downloaded the program from a trusted source, such as Google Play or the developer's official website, the risk is minimal.
It's important to consider that on HyperOS devices, the security mechanisms are even more aggressive, applications can fly out or stop recording sound after a system update, so it's better to test the free period before installing paid versions.
Configuring the quality and format parameters
The recording quality depends on the chosen codec and bitrate. In the settings of the voice recorder or third-party application, you can usually choose the format of saving: MP3, WAV or AMR. AMR format takes up less space but has a lower sound quality, while WAV provides maximum clarity, but quickly consumes the memory of the device.
For business negotiations, where every detail and intonation is important, it is recommended to choose the WAV or MP3 format with a high bitrate (at least 128 kbit / s). If the record is kept to record the fact of the call (for example, from a courier or delivery service), AMR format is enough. This will save space on your Redmi internal drive.
| Parameter | AMR | MP3 | WAV |
|---|---|---|---|
| Sound quality | Low/Mediocre | Good. | Excellent (no compression) |
| File size (1 min) | ~15-20 Kb | ~1 MB | ~5-10 MB |
| Compatibility | Requires conversion | Universal. | Universal. |
| Recommendation | To save space | The middle ground | For important negotiations |
Keep in mind disk space. Long-term WAV conversations can take hundreds of megabytes; regularly check your records folder and archive important files to the cloud or computer; and you can set a limit on the number of files you save or their total weight in your application settings so that old records are automatically deleted.
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The optimal balance between quality and file size for most users is the MP3 format with a bitrate of 128 kbit/s.
Problems with notifications and access to the microphone
A frequent problem on Xiaomi smartphones is aggressive battery saving, which kills background processes, including apps for recording conversations. If the recording is interrupted immediately after the start of the conversation or does not begin at all, you need to configure the application in power saving mode. → Battery and performance (or “Applications» → «Application management»).
Find your call recording app on the list and select Energy Saving. Set "No Limits" and make sure that the permissions (Settings → Apps → Permissions → Microphone) give the app access to "Always" or "Only during use," although recording calls often requires background access, which the system may block.
⚠️ Note: In Android 12 and later, when the microphone is running in the background, a green dot can light up in the corner of the screen. This is a system indicator that cannot be turned off without Root rights, and it signals that the sound is being recorded.
Another problem is that there's no audio in the recording, which happens when the app can't intercept the internal audio stream and only writes what it "hears" through the main microphone (i.e. your voice), which is only to turn on the speakerphone while you're talking or use a headset that can sometimes be intercepted correctly.
If nothing works, try turning off the Sound Improvement or Noise Cancel function in the call app settings, and sometimes these algorithms conflict with the recorder programs as if they were extraneous noise.
Where to look for saved files and how to edit them
After the conversation is over, the file is saved to the device's internal memory.The standard path for Xiaomi's built-in voice recorder usually looks like internal memory. → MIUI → sound_recorder → call_rec. In new versions of Android, the path may be hidden deeper: Android/data/com.android.phone/files/CallRecorder. You can find these folders through the standard Files Explorer».
For editing, cropping off the unnecessary beginning or end of a conversation, and amplifying quiet sound, built-in tools may not be enough. It is recommended to use audio editors such as Lexis Audio Editor or MP3 Cutter, which allow not only to crop the file, but also to apply noise reduction effects if the recording was conducted in a noisy place or through a speaker.
How to hide a folder with records from outsiders?
Remember to back up important conversations regularly. Your smartphone’s internal memory is not a reliable storage: if your system fails or your device breaks, files can be lost irretrievably. Use cloud services (Google Drive, Yandex.Disk, Mi Cloud) to automatically synchronize your record folder.
Sorting files by date and time in a standard Explorer sometimes works incorrectly if the files were transferred from another device. For easy search, it is better to use specialized players or rename files immediately after an important conversation, adding the name of the interlocutor or the essence of the question.