Owners of Xiaomi Redmi 9 with NFC often face the need to record phone conversations β whether to save important information, fix agreements or resolve disputes. However, the standard features of MIUI are not always obvious: the recording function may be hidden in the depths of settings or not at all in some regional firmware. In this article, we will discuss all the current ways to activate recording calls on Redmi 9, including official methods, third-party applications and hidden chips of the system.
The peculiarity of the model with NFC-The chip is that its firmware may differ from the base version of Redmi. 9 β It affects the availability of certain features. We'll take into account all the nuances of the version. MIUI 12/13/14 You will also learn how to circumvent restrictions if the record is blocked by the operator, and what legal risks should be considered when using this feature in Russia and CIS countries.
Official ways to include entry in MIUI
Xiaomi has built call recording into its MIUI shell, but availability depends on the firmware version and region. On the Redmi 9 with NFC (model M2004J19C), recording can be enabled in two ways:
The first is through the phone app settings. Open the Phone app, click on the three dots in the top right corner, and select Settings β Call Record. You can turn on automatic recording for all calls or only for selected contacts. If this is not the case, your firmware does not support out-of-the-box.
The second way is through the hidden MIUI menu, which runs on firmware up to MIUI 14:
- Open the Phone app and type the combination ##6484##.
- Select Event Log Test β Function Test β Call Recording.
- Activate the Enable Call Recording switch.
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If ##6484## doesnβt work, try entering it in the Contacts app instead of Phone.
Important: Once activated via the hidden menu, the recording will only be available for incoming calls. Outbound calls will require additional settings in Settings β Apps β Permissions β Phone β Microphone.
Why Call Recordings May Not Be In Settings
The lack of a write option in the Redmi 9 menu with NFC is usually due to one of three factors:
- π± Regional restrictions: Call recording is disabled in firmware for the EU and some Asian countries for legal reasons. β The phone. β Version. MIUI (must have RU or Global).
- π An outdated version MIUI. On versions below MIUI 12.0.3 The recording function was unstable. Update the system to Settings β Update of the PO.
- πΆ Operator lock: Some mobile operators (e.g. MTS or Beeline) block the recording at the network level. SIM-card.
If your Redmi 9 is purchased in China (CN firmware), call recording may be blocked due to local privacy laws, in which case only flashing to the global version of MIUI will help.
Third-party applications for recording calls
If the built-in feature is not available, third-party apps will come to the rescue, and we tested 5 popular solutions on Redmi 9 with NFC and selected the three most reliable ones:
| Annex | Features | Cons | Reference |
|---|---|---|---|
| Cube Call Recorder | Records both ends of the conversation, cloud integration, and auto-save | Paid version for VoIP recording, high battery consumption | Google Play |
| Call Recorder by Lovekesh | Free version without restrictions,.mp3 and.wav support | Advertising, sometimes not recording outgoing | Google Play |
| ACR (Another Call Recorder) | Flexible settings, schedule recording, support for Xiaomi | Complicated interface, requires manual adjustment | Google Play |
Before installing, check the application permissions:
- Open Settings β Applications β Permissions Management.
- Find the installed recording app and allow access to the Microphone, Warehouse and Phone.
- Enable the option to display over other windows (for some applications).
Install the application from the official store|Allow access to microphone and storage|Set up automatic recording in application parameters|Check the free space on the device (minimum 500 MB)-->
Important for Redmi 9 with NFC: Android 10+-based apps (including MIUI 12/13) cannot record conversations through the standard API due to Google's limitations.
Manual recording through the engineering menu
For advanced users, there is a way to activate recordings via the Engineering Mode, which works on most versions of Redmi 9 with NFC, but requires caution:
Steps to include:
- Open the Phone app and type ##4636##.
- In the Testing menu, select Phone Information.
- Scroll down to Turn on VoLTE Provisioned Flag and activate it.
- Go back to the main menu and select Hardware Testing β Audio β Call Recording.
- Set the Enabled value for Call Recording Mode.
After this, the Phone app will have a recording button during the call, and note that this method may reset once the device is restarted.
What to do if the engineering menu does not open?
Legal aspects of call recording in 2026
In Russia and CIS countries, recording telephone conversations is regulated by the legislation on personal data and privacy. According to Art. 23 of the Constitution of the Russian Federation and Art. 138 of the Criminal Code, recording a conversation without the consent of the interlocutor can be considered a violation if:
- π The conversation is recorded for personal purposes (not for official necessity).
- π The entry is distributed to third parties without the consent of the participants.
- π The interviewee is not notified of the recording (in some regions, voice alert is required).
Exceptions:
- β Recording to protect your rights (for example, fixing threats or fraud).
- β Official conversations, if it is prescribed in the internal regulations of the company.
- β Situations when the interlocutor agrees to the recording in advance (for example, in call centers).
In Belarus and Kazakhstan, the rules are similar, but Belarus requires the notification of the second person in the conversation; in Ukraine, recording without consent is allowed only for personal use without distribution.
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Best practice: Before recording an important conversation, verbally notify the person (for example, βIβm turning on a recording to record our agreementsβ), which will protect you from legal risks.
Where records are stored and how to keep them
By default, call records on Redmi 9 with NFC are saved in the folder:
/storage/emulated/0/MIUI/sound_recorder/call_rec/The files are.amr or.mp3 and are named by pattern call_YYYYMMDD_HHMMSS.amr. To transfer them to the computer:
- Connect your phone to your PC via USB (select File Transfer Mode).
- Open the folder Internal drive β MIUI β sound_recorder β call_rec.
- Copy the necessary files to the hard disk.
For automatic backup:
- π Use Google Drive with Autoboot for folder call_rec.
- βοΈ Set up sync via Mi Cloud (in Settings) β Xiaomi Account β Cloud β Backup).
- π Install AutoSync to automatically upload new records to the cloud.
If the records are not saved, check:
- π± Is there enough space on the device (records take up) ~1 MB/minute).
- π Is access to storage for the Phone application disabled.
- π Are the settings reset after restarting (relevant to the engineering menu).
Frequent problems and their solutions
Redmi 9 users with NFC often have the following difficulties recording calls:
| Problem. | Possible cause | Decision |
|---|---|---|
| Record button is not active | Limitation of operator or firmware | Use a third-party app or change SIM-map |
| Recording ends in 30 seconds. | Limitation of the free version of the application | Upgrade to the premium version or select another software |
| No sound on the tape. | No permission to access the microphone | Check the permissions in Settings β Apps |
| Records are not retained. | We're out of space on the device. | Clear your memory or change the way you save it |
If after all the manipulations the recording does not work, try:
- Reset the settings of the Phone application in Settings β Applications β Phone β Storage β Reset.
- Update the firmware to the latest version of MIUI via Settings β Software Update.
- Install custom recovery (such as TWRP) and flash the Magisk module with a write patch.
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If you use two of them SIM-card, the record can only work on the main (Slot 1). β SIM-maps and mobile networks β Settings SIM-map.