Owners of the Xiaomi Redmi Note 7 often face the need to record or listen to phone conversations β whether to save important information, control the quality of communication or resolve disputes. However, the standard MIUI features on this model have limitations: in some regions, the call recording function is disabled due to legal regulations, and the built-in voice recorder does not always work correctly during a conversation.
In this article, weβll look at all the current ways to listen and record conversations on Redmi Note 7, from legal built-in tools to third-party apps with advanced features, and focus on technical nuances (such as why recording doesnβt work through the speaker on some firmware) and legal aspects so that you donβt break the law using these methods, and uncover the myths of βhidden listeningβ through the engineering menu and explain why these methods donβt work on modern versions of Android.
Built-in call recording capabilities on Redmi Note 7
The standard MIUI firmware for the Redmi Note 7 (lavender models) includes call recording, but its availability varies by software version and region. For example, in European firmware (MIUI EU), this option is often blocked due to privacy laws (GDPR), and it can be checked by:
- Open the Phone app.
- Dial the number and start the call.
- During the conversation, pay attention to the screen β if there is a βWriteβ button in the interface (usually in the form of a dot mug), the function is active.
If there is no button, try to enable the entry through the settings:
- Go to Settings β Applications β Phone β Recording calls.
- Activate the "Record Calls" slider.
- Select the mode: "All calls", "Favorites only" or "Unsaved numbers only".
β οΈ Attention: On firmware MIUI 12.5+ Redmi Note 7 may not work due to Android 10 limitations+. In this case, the reset of the phone application settings (Settings) will help β Annexes β Phone. β Warehouse β Clear the data).
Where are the records kept?
- π folder /MIUI/sound_recorder/call_rec/ inner-memory.
- π Files in.amr or.mp3 (depending on the version MIUI).
- π§ You can listen to it through the standard application "Records" or any file manager.
Why Call Recording May Not Work: Technical Reasons
On Redmi Note 7, call recordings are often denied for the following reasons:
| Problem. | Reason. | Decision |
|---|---|---|
| No recording button. | Regional restrictions in firmware | Install MIUI Global or MIUI EU via Fastboot |
| Recording interrupted | Optimizing the battery for the phone application | Disable optimization in Settings β Battery β Battery Optimization |
| The voice of the interlocutor is not recorded. | Restricting Android from accessing the microphone during a call | Use applications with the function "Write through the speaker" |
| Record files damaged. | Lack of memory or file system error | Clear the cache of the phone application and check the memory for errors |
A critical feature of the Redmi Note 7 is that it only uses mono (single-channel) to record through standard MIUI, so the voice of the interlocutor may sound quieter than yours, due to the hardware limitations of the Qualcomm Snapdragon 660 chip, which does not support full stereo recording during a call.
If you find that the record is turned on, but an empty file is saved, check:
- π Permissions for the Phone application (Settings) β Annexes β Phone. β Permits β Microphone and Warehouse must be included).
- π± Energy saving mode: in Settings β Battery add the phone app to exceptions.
- π Rebooting the device: sometimes helps to reset the temporary errors of the communication module.
Third-party applications for recording calls: TOP-5 work-offs
If the built-in tools don't fit, use specialized apps. We tested them on Redmi Note 7 with MIUI 12.5 and Android 10:
- Cube Call Recorder ACR (free, with shopping) π― Records both voices (your voice and the other voice) through a speaker. π Automatic Save to the Cloud (Google Drive, Dropbox). β οΈ Requires switching off battery optimization for stable operation.
- Call Recorder β Automatic Call Recorder (from Appliqato) π Flexible settings: write by number, time, keywords. π Password encryption of records. π± It even works on custom firmware (for example, LineageOS).
- Truecaller (with a recording function) π Integration with the number determinant. π Records are synchronized between devices. β Does not record the voice of the interlocutor on some firmware MIUI.
Important: Check compatibility with your version of Android before installing. For example, Cube Call Recorder ACR requires Android 6.0+, but MIUI 13 may require manual permissions setting via ADB:
adb shell pm grant com.catalinagroup.callrecorder android.permission.RECORD_AUDIO
adb shell pm grant com.catalinagroup.callrecorder android.permission.READ_CONTACTSβ οΈ Note: Applications using the speaker recording method (e.g. Cube) ACR), They can reduce the sound quality because of the echo. For important conversations, test the recording in advance!
Install the application from an official source (Google Play)| Disable battery optimization for the application |Provide all necessary permissions (microphone, contacts, storage) | Test recording on a test call-->
Hidden listening: myths and reality for the Redmi Note 7
Instructions for βhidden listeningβ are often found online via the engineering menu (#4636###) or ADB-In practice, these methods do not work on the Redmi Note 7 for the following reasons:
- π Android's Limitations 9/10: Starting with these versions, access to the audio stream during the call is blocked for third-party applications without root rights.
- π‘οΈ Protection MIUI: Xiaomi has closed the vulnerabilities that allowed to intercept audio through MediaRecorder API.
- π‘ Lack of hardware support: Snapdragon 660 chip does not allow you to duplicate audio stream without a physical connection to the audio stream AUX-exit.
Common myths:
- π± "You can listen to a conversation through a second phone β requires special equipment (for example, a Bluetooth repeater) and works only within a radius of 10 meters.
- π§ "Engineering menu gives access to wiretaps" - in the menu # #4636## there are no options for recording calls, only equipment tests.
- π» "ADB It allows you to intercept audio" β commands like adb shell screenrecord record only the screen, not sound.
The only working way of hidden recording is the use of an external recorder connected to the AUX-So, you can use a 3.5 mm connector or Bluetooth, like a Sony voice recorder. ICD-UX570 It can record a conversation if you put the phone next to the speaker, but it's not a good thing for the person you're talking to, and it doesn't guarantee good sound.
What happens if you try to use a utility like SpyApp?
Legal aspects: when recording calls is legal
In Russia and most countries, recording telephone conversations is regulated by laws on personal data and privacy.
- π Consent: In most cases, recording a conversation without notice to the other party is considered a violation (Article 138 of the Criminal Code.
- βοΈ Evidence: In court, a record can only be accepted if it is legally obtained (for example, with the notification of the interlocutor).
- π Storage of records: Distribution of records without the consent of participants is punishable by a fine (up to 300 thousand rubles under article 13.11 of the administrative code of the Russian Federation).
How to legally record conversations on Redmi Note 7:
- Notify the person at the beginning of the conversation (for example: βThe conversation is recorded to record informationβ).
- Use the posts only for personal purposes (for example, for reminders or fixing agreements).
- Delete the records after their expiration date.
Some countries (e.g. the U.S.) have different laws: 12 states require the consent of all participants in a conversation, while others require only one.
π‘
Recording a conversation without notifying the interlocutor can only be used in court if it proves the commission of a crime (for example, extortion or threats), in other cases, the court may refuse to accept it as evidence.
Alternative ways to capture conversations
If recording a call is impossible or illegal, consider alternative methods:
- π Handwritten notes: Keeping notes while talking (e.g., in Google Keep or Google Keep) MIUI Notes).
- π§ Written confirmation: Sending SMS or email with a summary of the arrangements immediately after the call.
- π₯ Video fixation: Screen recording with the number and time of the call (via Settings) β Additionally. β Screen recording).
- π Conference: Connecting a third phone (e.g. via Zoom or Skype) to duplicate a conversation.
For business correspondence, it is convenient to use services with automatic logging:
- πΌ CRM-systems, for example, Bitrix24 AmoCRM β Integrate with telephony and save your call history.
- βοΈ Virtual PBX (e.g. Zadarma or Mango Office) β provide details and recordings of conversations legally.
On Redmi Note 7 to record the screen during the call:
- Activate the function in Settings β Additional β Screen recording.
- Run the recording before the call starts (the recording button may be blocked during the call).
- Note that screen recording does not capture the voice of the interlocutor, only your voice and interface.
Frequent Mistakes and How to Avoid Them
When trying to record or listen to a conversation on the Redmi Note 7, users often make the following mistakes:
| Mistake. | Effects of consequences | How to avoid |
|---|---|---|
| Use of uncertified applications | Viruses, data leakage, blocking of Google account | Install only from Google Play with a rating of 4.5+ |
| Recording without notice to the interlocutor | Legal risks, conflicts | Always warn about the recording (orally or through an autoinformer) |
| Storing records in the cloud without encryption | Access of third parties to confidential information | Use encrypted applications (e.g. Signal) |
| Trying to get root for hidden recording | Loss of warranty, brick devices | Use legal methods (external voice recorders, CRM) |
A typical scenario is that the user installs a recording app, but it doesn't capture the voice of the person, and the reason is that the app uses the microphone of the phone, which is occupied by the communication module during the call.
- π Enable the option "Write through the speaker" in the application settings (if any).
- π± Switch the call to speaker (but it will be heard by the interlocutor).
- π§ Use a headset with a microphone (e.g., Xiaomi Bluetooth Neckband).
π‘
If you need to record an important conversation but the apps donβt work, use a second phone. Put it next to the Redmi Note 7 speaker and turn on the recorder (like the standard Records app on another Xiaomi).