Xiaomi Redmi Scanner: Where to Look, How to Enable and Configure

Did you buy a new Xiaomi Redmi smartphone and can't find a fingerprint scanner? QR-And you don't know where the function is, and this is a problem that many people are familiar with, especially those who have moved from other brands. In the Redmi line, scanners can be placed in different locations depending on the model, the generation, and even the regional firmware.

In this article, we will analyze all types of scanners that are found in Xiaomi Redmi smartphones: from the classic fingerprint sensor to the scanner. QR-And you'll learn not only where the module is physically located, but how to activate it, configure it, and what to do if it doesn't work. And for older models, we've created a separate section with nuances that are not written in the official instructions.

Types of scanners on Xiaomi Redmi: what can be scanned

Xiaomi Redmi smartphones come with several types of scanners, each of which performs a different function, so let’s see what modules your device may have and what they are for.

• 👆 Fingerprint scanner is the most common type, used to unlock the screen, log in to apps and confirm payments, depending on the model, it can be physical (button or underscreen) or optical (built into the display).
• 📱 Face Unlock, an alternative to fingerprints, works through a front-facing camera, less reliable but convenient for everyday use.
• 🔗 Scanner. QR-It's built into a camera or a separate app, and it's used to click on links, connect to Wi-Fi, pay through Mi Pay, etc.
• 📄 Document scanner – a feature in the Camera or Files app that converts document photos into PDF quality-enhanced.

Not all models support all types of scanners. 9A or Redmi 10A They may not have a fingerprint sensor, but they definitely have a scanner. QR-Flagship models like Redmi are the same. K50 Pro is equipped with a subscreen optical scanner and improved Face Unlock.

Where is the fingerprint scanner on different Redmi models?

The location of the fingerprint sensor is one of the most common questions. Xiaomi Redmi has changed with each generation, so there is no universal answer. Below we have gathered up-to-date information on popular series.

Important: on models with a subscreen scanner (for example, Redmi) K50) The fingerprint area is not visible visually, it's only indicated by animation when you set it up. If you can't see the physical sensor, check the lock screen settings.

⚠️ Note: On some firmware (e.g., the global version for Europe), the fingerprint scanner may be disabled by default due to legal restrictions, in which case it must be activated manually via Settings. → Password & security → Fingerprint.

How to turn on and configure a fingerprint scanner

Even if you find a sensor, you still have to set it up correctly, and it takes less than a minute to add a fingerprint, but there are nuances that affect the reliability of the recognition.

Add the main fingerprint (right thumb)|Set up an alternative fingerprint (indicator finger)|Activate unlocking applications|Check in the dark (for optical scanners)-->

Instructions for activation:

1. Go to Settings. → Password & security → Fingerprint.
2. Enter. PIN-code or pattern lock (if not configured, the system will prompt you to create a).
3. Click Add Fingerprint and follow the prompts on the screen.
4. Put your finger on the sensor from different angles (the system will tell you when there is enough data).
5. Save the fingerprint and assign him actions (unblocking, payment, etc.).

Tips for better scanner performance:

• 🧼 Keep your sensor and fingers clean – fat or moisture worsens reading.
• 🔄 Add the same finger twice at different angles (e.g., thumb-to-side and thumb-to-center").
• 🌡️ Avoid extreme temperatures – in the cold or in the heat, the scanner may work worse.

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If the scanner doesn't recognize the fingerprint the first time, try registering the finger of the other hand, and many users add index finger prints to both hands for convenience.

Scanner. QR-Codes: Where to look and how to use

QR-Codes are found everywhere, from menus in cafes to payment terminals. Xiaomi Redmi can scan them in several ways, depending on the model and version. MIUI.

Basic methods:

1. Through a standard camera: Open the camera app. Point the lens at the camera. QR-code (no need to take photos!) If the code is recognized, a notification will appear prompting you to click on the link.
2. Through the Mi Scanner app: Download the official Mi Scanner app from Google Play (if it's not by default). Open it and point the camera at the code. The app supports scan history and generation of its own. QR-code.

Through the notification panel:

• Swipe down the screen to open the notification bar.
• Find the Scanner icon. QR (It may be hidden under the editing).
• Click on it and scan the code.

If the scan is not working:

• 🔦 Make sure the code is well lit (turn on the flashlight in the dark).
• 📱 Check the permissions for the camera in Settings → Annexes → Camera. → Permits.
• 🔄 Reboot your smartphone – sometimes helps with recognition failures.

Document scanner: how to scan a passport or receipt

Xiaomi Redmi’s document scanning feature often goes unnoticed, although it’s extremely useful, and it can quickly digitize your passport, driver’s license, receipts, or even book pages, saving them in format. PDF.

How it works:

1. Open the Camera app.
2. Select Document Mode (or Pro if the first one is not available).
3. Point the camera at the document – the system will automatically highlight the boundaries.
4. Take a picture and click Save How PDF (or edit before saving).

Where to look for scanned files:

• 📁 By default, they are saved in the Documents or Scans folder in the gallery.
• 🔍 They can also be found through the Files app in the Categories section. → Documents.
• ☁️ By linking your Mi Cloud account, you can sync scans between devices.

Challenges and solutions:

• 📸 Curve scans: Put the document on a contrasting background (such as a dark table) and turn on the grid in the camera settings.
• 🖼️ Low quality: In manual mode (Pro) install ISO at 100-200 and exposure +1.0.
• 📱 No Document Mode: Update the Camera app via Google Play or use third-party scanners like CamScanner.

Face Unlock: How to set up facial recognition

Face Unlock is a convenient alternative to fingerprints, especially when your hands are busy or you are wearing gloves. In Xiaomi Redmi, this feature works through the front camera and infrared sensor (in models with a high-end camera). IR-blaster).

How to activate:

1. Go to Settings. → Password & security → Face unlock.
2. Create a backup. PIN-code (unless previously done).
3. Click Add Face Data and follow the instructions on the screen.
4. Turn your head in different directions so that the system remembers your profile.
5. Activate the option of Improved Recognition (if any) to work in the dark.

Face Unlock Limitations:

• 😷 Does not work with medical masks (unless an alternative profile is set up).
• 🌃 In the dark, a screen light or an external light source is required.
• 🔒 Less reliable than fingerprints – some applications (such as banking) do not accept it for authorization.

⚠️ Note: On models without infrared sensors (e.g. Redmi) 9A) Face Unlock only works in good lighting and can trigger a photo. Use it with your camera for security. PIN-code.

What to do if the scanner is not working

Scanner problems on Xiaomi Redmi are usually divided into two categories: hardware (physical sensor failure) and software (software failures, incorrect settings).

General steps to eliminate malfunctions:

1. Reboot your smartphone – it solves 30% of sensor problems.
2. Check if the sensor is blocking the cover or film.
3. Update the firmware through Settings → About the phone → System update.
4. Reset the scanner settings in Settings → Password & security → Fingerprint → Remove all prints and add them again.

Specific problems and solutions:

If nothing helps:

• 🛠️ For hardware breakdowns: contact the service center Xiaomi. the cost of repair of the fingerprint sensor – from 1,500 to 3,000 rubles depending on the model.
• 📲 For software failures: perform a reset settings through Settings → Additionally. → Reset settings (data will not be deleted, but scanner settings will reset).

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Check to see if the warranty is expired before you visit the service. On most Redmi models, the fingerprint sensor is covered by a 12-month warranty from the date of purchase.

FAQ: Frequent questions about scanners on Xiaomi Redmi