Redmi Note QR Scanner Not Working? Easy Fixes for Xiaomi Users

Why Your Redmi Note 11 Pro QR Scanner Fails

If the QR scanner on your Redmi Note 11 Pro isn't working no matter what you try, the problem is almost always one of three things: camera permissions are restricted, MIUI's built-in QR detection is disabled or glitching, or the code itself is too damaged, curved, or low-contrast for the default camera app to read. Xiaomi's MIUI (now HyperOS on newer updates) has its own camera QR detection layer that sometimes conflicts with Google Lens or third-party scanner apps — and permission management on MIUI is stricter than stock Android, which means an app can be installed but silently denied camera access without an obvious error.

Step 1: Check Camera Permissions for Your Scanner

This is the single most common cause on Redmi devices. MIUI's permission manager can block camera access even after you tapped "Allow" during setup.

1. Go to Settings → Apps → Manage apps.
2. Find your scanner app (or the Camera app if you're using the built-in scanner).
3. Tap App permissions → Camera and make sure it's set to Allow only while using the app (not "Ask every time" or "Deny").
4. Also check Nearby devices and Files and media permissions if you're trying to scan from a screenshot — MIUI sometimes blocks gallery access separately.

If you're using the system camera's built-in QR detection and it still fails, the permission issue may be with Google Play Services or Google Lens, which MIUI delegates QR scanning to on some builds. Check that Google Lens has camera permission too.

Step 2: Enable QR Code Detection in MIUI Camera Settings

MIUI's camera app has a dedicated QR scanning toggle that can get turned off accidentally or disabled after a system update — a known issue that also affects other Xiaomi models. You can read more about post-update scanner problems in our QR code scanner not working after update guide.

1. Open the Camera app.
2. Tap the menu icon (three lines or hamburger) in the top-right or swipe up from the mode bar.
3. Look for Settings → Scan QR codes and toggle it on.
4. If the toggle is already on, turn it off and back on — this forces MIUI to reinitialize the detection service.
5. Restart the Camera app completely (swipe it away from your recent apps).

On some Redmi Note 11 Pro units running newer HyperOS builds, this setting has moved to Settings → Additional settings → Camera settings. If you can't find it in the camera app, check there.

Step 3: Try Scanning from Your Gallery Instead

If the live camera scanner keeps failing — especially on a wrinkled package label or a screenshot someone sent you — skip the camera entirely. Import the image directly from your photo gallery and let the app decode it from a static image, which is far more reliable for damaged or curved codes.

QR Scanner Creator supports direct album import: open the app, choose the scan-from-image option, and pick the screenshot or saved photo from your gallery. The decoding engine processes the image file instead of relying on a live camera feed, which eliminates focus and lighting issues entirely. This is particularly useful when someone texts you a QR code screenshot and you need to extract the link without pointing your camera at another screen. For a broader walkthrough, see our guide on how to scan a QR code from your phone's photo gallery.

Step 4: Use a Dedicated Scanner App Instead of the Built-In Camera

The Redmi Note 11 Pro's built-in camera QR detection is convenient but limited — it struggles with low light, curved surfaces, and non-standard barcode formats. A dedicated scanner app has a more aggressive decoding engine and features the camera lacks, like a flash toggle for dark environments and support for multiple barcode types beyond standard QR.

QR Scanner Creator handles these scenarios with a quick-scan utility that auto-detects codes through the camera and includes an integrated flash toggle for low-light situations like dim restaurants or evening outdoor scans. Its scanning engine is compatible with multiple standard QR and barcode formats, though for best results you should still try to flatten the surface — a slightly bent book page or curved bottle can cause partial reads even with a strong engine.

When the Code Itself Is the Problem

Sometimes the scanner isn't broken — the code is. If you've tried multiple apps and the camera and nothing reads it, check these:

• Physical damage: If the code is scratched, torn, or faded, no scanner will decode it reliably. Try photographing it in good light and scanning from the photo.
• Screen glare: Scanning a QR code displayed on another phone's screen often fails due to refresh-rate interference. Increase brightness on the source screen or ask the sender to share the image directly.
• MIUI battery optimization: MIUI aggressively kills background apps. If your scanner app crashes mid-scan, go to Settings → Apps → [your scanner] → Battery saver and set it to No restrictions.

If none of these work and the scanner was fine before a system update, the issue is likely a MIUI/HyperOS bug rather than your phone's hardware. In that case, a dedicated app like QR Scanner Creator is the most reliable workaround since it doesn't depend on MIUI's built-in detection layer. For more troubleshooting steps that apply across Android devices, see our guide on what to do when your QR scan isn't working.

Who This Helps and Who It Doesn't

These fixes are for Redmi Note 11 Pro and similar Xiaomi devices running MIUI 12.5 through HyperOS. If you're on a much older Xiaomi device with a different Android version, some menu paths may differ — our guide on scanning QR codes on older Android phones covers legacy devices. If your phone's camera itself is malfunctioning (black screen, focus motor broken), no software fix will help — that's a hardware issue.

Download QR Scanner Creator to get a reliable, privacy-focused scanner that stores all your scan history locally on your device with no data uploaded to external servers.

QR Scanner Creator

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