How to Open Hidden Notes on Xiaomi Redmi 4: From Standard Features to Technical Lifehacks

Xiaomi Redmi 4 MIUI-based smartphones store notes not only in obvious places like the Notes app, but also in some places that can be hidden by the system, such as after resetting, updating the firmware or accidentally deleting them, and other notes are hidden in service folders that users rarely look at.

In this article, we will look at all the possible ways to access hidden notes, from standard MIUI functions to working with the file system through ADB and third-party utilities. We will focus on data security - how not to lose important information when searching. If you suspect that notes have been deleted, not just hidden, at the end of this article there is a section on recovery.

⚠️ Warning: Methods using ADB or manual editing of system files requires root or unlocked bootloader rights. Incorrect actions can result in loss of warranty or "brick" of the device (complete failure). → Additionally. → Backup and reset.

1.Search for hidden notes through the standard Notes app

To start with, it's possible that your notes aren't deleted, but are simply archived or labeled "hidden" within the app itself. MIUI has a built-in feature to hide the notes from prying eyes.

Open the Notes app (yellow notebook icon) and follow the following steps:

• 🔍 Click on three dots in the upper right corner → Select Archive. This is where you store notes that you've manually archived.
• 🔒 Go to Secure Notes (you may need to enter a password or fingerprint). If you have previously turned on security, confidential records may be hidden here.
• 🗑️ Check the Recycle Bin (available on the same menu) and deleted notes are stored here for up to 30 days, after which they are permanently erased.

If there's nothing in these sections, but you're sure that the notes were created on the device, move on to the next method, and maybe they're saved in a different format or folder.

2. Verification of system folders through the file manager

MIUI saves notes as files with the.md (Markdown) or.json extension in the service directories to find them:

1. Install a file manager with access to system folders, such as Solid Explorer or FX File Explorer (you need to enable the display of hidden files in the settings).
2. Go to /data/data/com.miui.notes/files/notes/ All notes are stored in encrypted or open form.
3. If the folder is not available, try the alternative path: /sdcard/MIUI/Notes/ (sometimes notes are duplicated here for backup).

📌 Important: Files in /data/data/ If you see files with the.db or.dat extension, you will need special software to read them (this is discussed in the section below). 5).

3. Connect to a PC and search through Windows/macOS Explorer

If you can't find notes on your smartphone, connect Redmi 4 to your computer in file transfer mode (MTP).

• 📁 Internal memory. → MIUI → Notes – Exported notes may be here.
• 📁 Internal memory. → Download → Notes_backup — automatic backups (if synchronization is enabled).
• 📁 SD-card (if any) →.Notes – a hidden folder with backups.

If you store notes in.md format, you can open them with any text editor (such as Notepad++ or VS Code), and.json files will need to be converted using online services like JSON-CSV.

⚠️ Warning: Do not edit note files directly on your phone via PC! this can damage the Notes app database. First copy the files to your computer and then work with copies.

4.Recovery of Notes from MIUI Backup

MIUI automatically creates backup notes when synchronized with a Xiaomi account, to recover data:

1. Open your Settings → Xiaomi Account → Mi Cloud.
2. Make sure the Notes switch is on and the synchronization is successful.
3. In the Notes app, click three dots → Restore. The system will prompt you to select a backup date.

If sync is disabled, try to restore notes from the local backup:

• 🔄 Go to Settings. → Additionally. → Backup and reset → Local backups.
• 📅 Choose the latest copy and click "Restore." Make sure the tick is next to the item "Notes».

Make sure there is enough space on your phone (minimum 500MB)

Connect the charger (the process can take 10-30 minutes)

Disable VPN (may interfere with sync with Mi Cloud)

Remember current notes (restore them)

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5. Working with a Notes Database through ADB (for Advanced)

If standard methods don't work, and notes are critical, you can try extracting them through Android Debug Bridge (ADB), which requires command line skills.

🛠️ What's the matter:

• 🖥️ Computer with installed ADB-driver.
• 📱 Included debugging by USB Redmi 4 (Settings) → The phone. → Version. MIUI → 7 times to unlock the developer menu, then Settings → Additionally. → For developers → Debugging by USB).
• 🔌 USB-cable (preferably original).

📌 Instructions:

1. Connect the phone to the PC and in the command line, perform: adb devices Make sure that the device is determined.
2. Copy the Notes Database to your computer: adb pull /data/data/com.miui.notes/databases/notes.db
3. Open the notes.db file with a SQLite program, such as DB Browser for SQLite.
4. In the note table, find the content column - here the text of the notes is stored.

⚠️ Note: If the database is encrypted (the file has the extension.db-journal or.db-wal), it will require a key to decrypt it, which is stored in the file. /data/data/com.miui.notes/shared_prefs/. Without root rights, it is impossible to extract it.

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If ADB doesn’t recognize the device, try reinstalling drivers manually through Windows Device Manager. Download Mi PC Suite and select “Install drivers” option.

6.Use of third-party utilities for recovery

If the notes have been deleted but not yet overwritten with new data, you can try to restore them with specialized programs.

🔧 How to use it:

1. Install the program on your PC and connect Redmi 4.
2. Select the Recovery Mode “Notes” or “Documents”.
3. Wait until the scan is finished (it can take up to an hour).
4. View the files found and save the files to the computer.

⚠️ Important: Don't install recovery software on your smartphone, it can overwrite deleted data. Always work with a PC!

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The faster you start recovering from deletion, the better the chances of getting your notes back, and each new file or application you install reduces the likelihood of success.

7. Alternative methods: cloud services and synchronization

If you have used third-party services for notes, check them out:

• ☁️ Google Keep: Open keep.google.com and log in with the same account you have on your phone.
• 📝 Microsoft OneNote: Notes can sync with Microsoft account.
• 🔗 Evernote or Simplenote: Check the history of changes in the web version.

If you used sync with Mi Account but your notes didn’t recover through the standard app, try:

1. Go to i.mi.com and log in.
2. Go to the section "Cloud» → «Notes. Old versions of the records may be stored here.
3. If you don’t have notes, check the Recycle Bin in the cloud (available for 30 days).

FAQ: Frequent questions about hidden notes on Xiaomi Redmi 4