Did you take a picture and the face in the photo turned out to be blurry or “plastic”? This is a common problem for owners of Xiaomi, Redmi and POCO smartphones. Device owners often complain of over-processing of images that turns portraits into unnatural pictures. Artificial intelligence algorithms built into the camera often get the boundaries of an object wrong.
There are many reasons, from the banal dirt on the lens to the complex settings in the engineering menu. MIUI and HyperOS system strive to improve the appearance of the skin, but sometimes overdo it, creating the effect of "soap". In this article, we will examine all possible causes and find ways to eliminate them.
The influence of the mode “Portrait” and bitification
The most common cause of blurring is the activated Portrait mode, which is a mode in which the smartphone programmatically blurs the background to simulate the work of professional cameras with a large aperture. However, the algorithm often gets mistaken and blurs not only the background, but also the edges of the face, ears or hair. Xiaomi actively uses this feature to create artistic effects, but it requires accurate focusing.
The second factor is built-in biscopy. Even if you haven't explicitly turned on the beauty mode, the basic settings can smooth the skin texture to a uniform spot, especially in low light, when noise cancellation begins to aggressively eat away at image detail. To check this, try taking a picture in Pro or Video mode, where the effects are minimal.
And you also have to look at the work of HDR, or High Dynamic Range, where when you're shooting a moving object or shaking your hands, the algorithm for gluing multiple frames can fail, and you get your face blurred while the background is clear, and it's a classic computational photography artifact that all manufacturers struggle with.
⚠️ Note: If you use third-party camera apps (such as Open Camera), depth and portrait modes may not work properly, causing a lot of blur where it shouldn’t be.
Problems with focus and stabilization
The technical limitations of optics play a key role. Redmi and POCO budget models often feature fixed focus or a simplified autofocus system. If you hold the phone too close to your face, the camera will physically fail to focus and the image will become cloudy. Minimum focus distance is an important parameter that many users forget about.
In addition, optical stabilization (OIS) or electronic stabilization (EIS) can make adjustments. When you're shooting video or in Night mode, the shutter speed gets longer. Any micro-movement of the hand at that point will cause lubrication. Stabilization algorithms try to compensate for the tremors by cutting the edges of the frame, but sometimes they also shift the face.
Check the macro mode. Often users accidentally switch to a macro lens (if there are several), which has a very small depth of field, in which case the focus will be only the tip of the nose, and the rest of the face will go in the side (blurring).
- 📱 Wipe the lens with a soft cloth - greasy spots create the effect of light scattering.
- 🎯 Click on the screen in the face area to force refocus before the shot.
- 🚫 Avoid digital zoom as it just stretches pickles and makes noise.
Settings of resolution and aspect ratio
Incorrect resolution can cause loss of detail. Xiaomi camera settings often default to High Efficiency or reduced resolution to save space. In this case, interpolation (program magnification) makes the picture less sharp. For maximum quality, always choose the maximum available resolution, such as 64 MP or 108 MP, if the model allows.
It also affects aspect ratio. When shooting in 16:9 or Full, the camera uses a crop matrix. It's a digital approximation that reduces the total number of pixels involved in the formation of the face image. The 4:3 mode is native to most matrices and gives the best sharpness.
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For maximum face detail, turn on 50MP or 108MP in the top of the camera, but remember that these photos take up more space.
It's important to check the save format settings. HEIF (High Efficiency Image Format) format provides better compression, but on older devices or when viewed on a PC it can display artifacts.Switching to standard JPEG often solves compatibility issues and visual glitches.
⚠️ Note: Shooting at maximum resolution (50/64/108/200 In low light, these photos will be full of digital noise, which algorithms can interpret as the need to blur.
Impact of MIUI and HyperOS Updates
Software is the brain of the camera. After updating MIUI firmware or switching to HyperOS, image processing algorithms can change. Xiaomi engineers often change color and sharpness tuning. Sometimes new versions contain bugs that temporarily worsen the quality of shooting before the patch is released.
There is a concept of “lotteries of matrices”, but in the context of software it is more of an “algorithm lottery”: on the same models, after updating, some users get a softer picture, and some people get a sharper picture. If the problem appeared abruptly after the update, it is likely that the new ISP (Image Signal Processor) settings are the case.
In some cases, cleaning the Camera app data helps, so it resets all the settings to the factory and removes any cache conflicts, and you can do this through the smartphone settings menu.
Settings → Applications → All Apps → Camera → Clean → Clean Everything- 🔄 Check for updates in the Camera app via Google Play or GetApps.
- 🗑️ Cleaning the cache helps to eliminate errors in the operation of processing algorithms.
- 📉 A rollback to the previous version of the firmware can return the usual quality of the photo.
Comparison of processing quality in different models
Different processors process photos differently. Snapdragon is traditionally considered the best for photography, while MediaTek (Helio/Dimensity) is more likely to sin aggressive noise cancellation. Below is a table showing the typical problems of processing faces in different series of devices.
| Series / Processor | Typical problem | Reason. | Recommendation |
|---|---|---|---|
| Redmi Note (Helio) | Strong soap. | Aggressive noise cancellation | Use the Google Camera |
| Xiaomi (Snapdragon) | Peresharp (sharpness) | Strengthening the contours of the algorithm | Reduce the sharpness parameter |
| POCO (Snapdragon) | Unstable AF | Prioritizing speed over quality | Focus fixation (AE/AF Lock) |
| Xiaomi Civi / Lite | Excessive beatification | Emphasis on selfie functions | Turn off all beauty filters |
MediaTek-based devices often have their faces transformed into watercolors in low light, a feature of the brand's ISP chipsets, often by installing third-party cameras that use their own processing algorithms.
Use of Google Camera (GCam)
One of the most effective ways to solve the blur problem is to install a ported version of Google Camera. Google's HDR+ algorithms work wonders with Xiaomi's budget and mid-range matrices. They retain the natural texture of the skin and don't blur the face where it's not needed.
GCam requires root rights or installers, but the result is worth it. You need to find a port for your processor (Snapdragon). 6xx, 7xx, 8xx or MediaTek). XML-Configs (setting files) allow you to adapt the camera to a specific model, removing excess softness.
Where to find GCam for Xiaomi?
Once installed, remember to turn on HDR+ Enhanced mode in GCam settings for better detail, and experiment with noise reduction settings to find a balance between keeping your frame clean and keeping your face details.
☑️ Checklist for the installation of Google Camera
Hardware malfunctions and physical impact
And you can't rule out a physical breakdown, because if the camera started blurring the face suddenly and in all modes, the camera module's plume may have gone off, and a fall or a bump could have damaged the AF system, and the lens can't move to sharpen it, and then software won't help.
It's also worth checking the protective glass. Cheap, low-quality oleophobic glass can create a fog effect, or rainbow glare, that is perceived as blurring. Remove the protection and wipe the lens to make sure the accessory isn't the problem.
If the camera module overheats (which happens when you shoot long 4K video), the autofocus can float. The thermal expansion of the elements inside the module changes the focal length. Let the device cool down, and the problem should disappear.
⚠️ Warning: If the camera stops focusing after the fall and makes a buzzing sound, it's a sign of mechanical jamming of the autofocus drive.
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Software blur can be fixed by settings or changing the application, but mechanical damage to the camera module requires a physical replacement of the part.
In conclusion, the problem of facial blur on Xiaomi is often solved software. Start by cleaning the lens and checking the shooting modes, then try third-party applications. Only if nothing helps, it is worth considering diagnosing the hardware part of the device.