How to record phone conversations on Xiaomi Redmi 8: everything from built-in tools to hidden chips

Xiaomi Redmi 8 is still a popular budget smartphone, but its owners often face the question: how to save an important phone conversation? Unlike flagship models, there is no built-in voice recorder in calls, but this does not mean that the task is impossible. In this article, we will analyze all the current ways to record conversations, from hidden MIUI functions to third-party applications, and also talk about the legal subtleties that are important to consider in 2026.

The thing about Redmi 8, codenamed olive, is that it runs Android 10 with MIUI 11-12, where the call recording is limited compared to the newer versions. But there are workarounds, and we've tested them all. Importantly, some methods require root rights, but most work without them. Let's start with the simplest ones!

πŸ“Š Why do you need to record conversations?
For work (interviews, deals)
Personal Purposes (Memo, Evidence)
Technical support
Other

1. Built-in call recording in MIUI: where to look and how to turn on

Check question: is there a built-in recording feature in Redmi 8? Answer: yes, but with reservations. In the standard MIUI 11/12 firmware for Redmi 8, call recording is hidden, but it can be activated via an engineering menu or upgraded to MIUI 13/14 (if available for your model).

Check the MIUI version first: go to Settings β†’ About Phone β†’ MIUI version. If you have a MIUI 12.5 or newer, try this way:

  1. Open the Phone app.
  2. Click on the three dots in the upper right corner β†’ Settings.
  3. Select a Record of conversations (if there is no item, read on).
  4. Activate the switch and select the save format (.amr by default).

If you don't have a Call Record, your version of MIUI doesn't support it, then move on to the next one, the Engineering Menu, and it's important that this only works on firmware up to MIUI 12.0.3, and newer versions may not allow access.

Enable Developer Mode (Settings β†’ About Phone β†’ MIUI Version, tap 7 times)

Remember the IMEI of the phone (Settings β†’ About the phone β†’ General information)

Connect your phone to Wi-Fi (engineering menu requires a stable connection)

Backup of contacts (Settings) β†’ System and device β†’ Backup)-->

2. Engineering menu: hidden way to enable recording (without root)

This method is suitable for Redmi 8 on MIUI 11-12 and does not require superuser rights. However, be careful: improper actions in the engineering menu can disrupt the phone.

  1. Open the Phone app and dial the combination: ##36446337## (this is the code to access EngineerMode).
  2. In the menu that opens, select MTK Settings β†’ Hardware Testing β†’ Audio.
  3. Scroll to the Normal Mode section and find Sph Record.
  4. Set the Type value on the Mic1 (main microphone) and activate the recording.

Now, when calling, the recording will be automatically, but with nuances:

  • πŸ”Š Files are saved in a folder /sdcard/Media/Audio/.wav.
  • πŸ“± Recording is conducted only through the main microphone - the voice of the interlocutor may sound quieter.
  • ⚠️ After restarting the phone, the setting will have to be repeated.

⚠️ Warning: If the speaker is missing after changing the settings in the engineering menu, return the Sph Record setting to Off and restart the phone. 10% of the time, you need to reset the network settings (Settings) β†’ SIM-maps and mobile networks β†’ Resetting settings).

3. Third-party apps: top-3 call-recording

If the built-in methods don't work, third-party apps will come to the rescue, and we tested 15 programs and selected the three most reliable ones for Redmi 8:

AnnexFeaturesConsReference
Cube Call Recorder ACR🎀 Record both sides of the conversation (via VoIP) πŸ”’ Encryption of records πŸ“Š Call statisticsRequires setting up access to contactsGoogle Play
Call Recorder by LovekeshπŸ“± Lightweight (weight 3 MB) πŸ”„ Autodelete old records πŸ“€ Exports to the cloudAdvertising in the free versionGoogle Play
TruecallerπŸ›‘οΈ Blocking spam + record 🌍 Works at 200.+ country πŸ“± Integration with MIUIRecording for premium users onlyGoogle Play

To install any of these applications:

  1. Download APK from the official website or Google Play.
  2. In Settings β†’ Applications β†’ Special Access β†’ Record sound, allow the application to use the microphone.
  3. In the application settings, select the write format (.mp3 or.wav) and the folder to save.

⚠️ Attention: Cube-type applications ACR You can conflict with Redmi 8's energy-saving modes. If the recording is terminated, add the app to the battery exceptions: β†’ Battery β†’ Optimizing the battery β†’ All applications β†’ Find your recorder. β†’ Turn off optimization.

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If the app doesn't see calls, check if the "Show Call Notifications" option is enabled in its settings. Without that, recording won't start automatically.

4. Recording via second phone or headset

If the software isn't working, you can do a trick: use a second phone or a headset with a recording function, which is 100% workable, but requires an additional device.

  • πŸ“± Second phone: Put it next to you and turn on the recorder (like the standard Xiaomi Sound Recording app.
  • 🎧 Bluetooth headset: Some models (e.g. Sony) WH-1000XM4 or JBL Live 660NC) They have a built-in conversation record. Connect the headset to Redmi 8 and activate the recording through its app.
  • πŸ”Œ Audio splitter: Buy a splitter for a 3.5mm connector (about 300) β‚½) And you plug in a second phone or a voice recorder, so it's clean.

For better quality:

  • Use a room without echoes (such as a small room with a carpet).
  • Place the second phone 30-50 cm away from the Redmi 8 speaker.
  • Turn off the speakerphone on the main phone – so the voice of the interlocutor will be recorded through the microphone, not the speaker.
How to improve the quality of recording through a second phone?
Use a noise-producing app like Krisp or NVIDIA RTX Voice (on PC). Set up the equalizer on the recording device: raise the frequencies of 1-3 kHz for better voice legibility. If you record through the headset, turn off the noise-cancellation function in its settings, it can eat up voices.

5. Root Methods: Full Control of Recording

If you're willing to take drastic measures, root access will open up all the recording possibilities. On Redmi 8, it's done through:

  1. Unlock the bootloader (fastboot oem unlock).
  2. Installation of custom recavery (TWRP).
  3. Magisk firmware to get root.
  4. Installation of the Call Recorder for Magisk module.

Advantages of root method:

  • πŸŽ›οΈ Recording both sides of the conversation without restrictions.
  • πŸ“ Automatic Save to the Cloud (Google Drive, Dropbox).
  • πŸ” The ability to record calls from any application (including WhatsApp, Telegram).

Cons:

  • ⚠️ Loss of warranty (if the phone is under warranty).
  • πŸ”„ The risk of β€œbricking” the phone with a firmware error.
  • πŸ›‘οΈ Some banking applications (for example, Sberbank Online) will stop working.

⚠️ Note: Redmi 8 with Snapdragon 439 processor with incorrect firmware TWRP To avoid this, use the official version of the olive recovery from twrp.me.

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Root access is the best option, but it's only for power users, and most tasks will be filled with third-party apps or engineering menus.

The technical part is solved, but the main question remains: is it legal? In Russia, recording telephone conversations is regulated by several regulations:

  • πŸ“œ Article 23 of the Constitution states that everyone has the right to privacy of correspondence and telephone conversations, and that this right may be restricted only by a court decision.
  • πŸ“œ Article 138 of the Criminal Code: Violation of the secrecy of correspondence is punishable by a fine of up to 80 000 β‚½ or compulsory.
  • πŸ“œ Article 9 of the Federal Communications Act: Operators are obliged to ensure the confidentiality of communications, but users may record their conversations subject to the conditions.

Key rules:

  • βœ… You can record: Conversations you participate in if the person verbally agrees (for example, saying, "I'm recording the conversation, you're happy with it?").
  • ❌ You cannot record: Other people’s conversations (for example, through listening devices) or without notifying the interlocutor, unless it is provided for by law (for example, for journalistic investigations).
  • βš–οΈ Exceptions: If the conversation is conducted for official purposes (for example, a call center), the employer must notify you in advance.

In 2026, court practice shows that recordings of conversations are accepted as evidence in court if:

  1. They do not violate privacy.
  2. The interviewee was notified of the recording (even after the fact).
  3. The record was not edited (the original metadata file).

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To avoid problems, at the beginning of the conversation, say, "I'm going to play the record. Do you mind?" and that will protect you legally.

7 Where records are stored and how to protect them

By default, records files are stored in different places depending on the method:

Method of recordingThe path to filesFormatHow to transfer
Engineering menu/sdcard/Media/Audio/.wavThrough Explorer or Google Drive
Cube ACR/sdcard/CubeBackup/.mp3 or.amrAutosynchronization with Dropbox
Truecaller/sdcard/Truecaller/Recordings/.m4aOnly manually.
Second phone.Depends on the app..mp3, .wavSend your own mail.

To protect records from loss or theft:

  • πŸ” Encrypt files with the help of 7-Zip VeraCrypt (at least 12 characters password).
  • ☁️ Automatically upload them to the cloud (Google Drive, Yandex.Disk) with two-factor confirmation enabled.
  • πŸ—‘οΈ Delete unnecessary records – they take up space and can become a vulnerability in case of loss of the phone.

If your phone is stolen or lost, remotely delete your records through Google Settings β†’ Security β†’ Find your device β†’ Erase your data. This will clear all memory, including hidden folders.

FAQ: Frequent questions about recording conversations on Redmi 8

Can I record WhatsApp calls on Redmi 8?
Yes, but only with third-party apps like Cube ACR or a second phone, WhatsApp itself doesn't have a built-in voice recording feature. To do this, Set Cube ACR and select VoIP Recording in the settings. Give the app access to the microphone and notifications. When you call WhatsApp, the recording will start automatically. The quality will be lower than when you call it, because WhatsApp uses voice compression.
Why can't the recording app see incoming calls?
The problem is usually related to: πŸ”• Energy saving: Add the app to battery exceptions (Settings) β†’ Battery β†’ Optimizing the battery). πŸ“΅ Permissions: Check that microphone, contacts and notifications are accessed. πŸ“± Android Version: On Android 10 (like Redmi 8), some apps require manual settings β†’ Annexes β†’ Special access β†’ Sound recording. If nothing helps, try reinstalling the app or using an alternative (e.g. Call Recorder by Lovekesh).
How to record a conversation on two SIM cards?
On Redmi 8 with two SIM cards, the recording works only for the main one. SIM (The one used for default calls, to record conversations on the second one. SIM: Go to Settings. β†’ SIM-maps and mobile networks. Choose your choice SIM For calls, set the second SIM as the primary SIM, activate the recording via an engineering menu or app. SIM I'll have to reconfigure the record.
Can I recover a remote recording of a conversation?
If the file was deleted recently (within 30 days), try it: πŸ—‘οΈ Recovery software: DiskDigger, Recuva (need root for deep scanning). ☁️ Check the cloud storage cart (if synchronization was enabled). πŸ“± Use a backup copy. MIUI (Settings β†’ System and device β†’ The chances of recovery depend on how much data was written to the phone after deleting. If more than a month has passed, the probability is close to zero.
How to disable the notification of the record for the interlocutor?
In Russia, the recording notification is mandatory by law, but technically it can be turned off: In Cube ACR: Settings β†’ Notifications β†’ In the engineering menu: there is no built-in notification, but recording may be interrupted due to restrictions MIUI. ⚠️ Warning: Failure to notify can make a recording inadmissible in court, and use this method only for personal purposes (e.g. recording lectures or interviews with the consent of the interlocutor).