Many users are wondering what bad Xiaomi smartphone is when considering buying a device of this brand. Despite aggressive pricing and impressive specs on paper, in real life, owners often face a number of system problems. The MIUI shell (and now HyperOS) is known for its overload with features that do not always work consistently, as well as intrusive advertising even in expensive models.
Beyond the software, there are hardware trade-offs that the manufacturer makes to reduce cost, such as the quality of the case materials, the calibration of screens in the budget segment and the operation of communication modules. Xiaomi often sacrifices optimization for the introduction of new but raw technologies, which leads to unstable operation of the device in the long run.
In this article, we will discuss in detail the main reasons why some users are disappointed in buying a Chinese. We will touch on the issues of data privacy, build quality and features of after-sales support. It is important to understand that many software errors can be fixed by flashing to a global version, but hardware limitations will remain forever.
Intrusive advertising and the bloated shell of MIUI
One of the main complaints of the owners is the aggressive advertising policy of the company: advertising is found not only in standard applications like Music or Video, but can also pop up in system folders or after unlocking the screen. MIUI was originally created as a maximum functional system, but over time has become a platform for monetizing user traffic.
To turn off ads, you have to manually go through a lot of menus, which is not obvious to the average user, and often after a major update, privacy settings are reset and the ad modules are activated again, which creates the feeling that you are using a free product where you are a product.
The situation is aggravated by the presence of a large number of pre-installed junk (bloatware) to remove some system applications without using the system. ADB-You can't have commands or superuser rights. Not only does it take up space, it also consumes RAM, slowing down the interface.
- 📢 Advertising in system applications ("Conductor", "Themes", "Security").
- 📦 Inability to remove standard Chinese services without "dancing with diamond".
- 🔄 Reset privacy settings after firmware update.
⚠️ Note: Some of the system processes in MIUI They can collect data about your activities and transfer it to servers in China, even if you are in another country.
Problems with system optimization and stability
The instability of the operating system is another big argument in the list of what is bad Xiaomi smartphone. Users often complain about accidental reboots, interface freezes and problems with the operation of the touch screen. This is especially true for models of the mid- and budget segment, where MediaTek processors or old Snapdragon work in tandem with not fully optimized shell.
Aggressive energy saving systems often work against the user's interests. It can kill background processes without warning, which prevents notifications from messengers or the navigator stops plotting a route when the screen is off. Setting exceptions in the Settings menu → Battery → Activity control does not always help.
Frequent firmware updates often carry more bugs than fixes. In the pursuit of new features, developers forget about basic stability. HyperOS, which replaced MIUI, is also not without childhood diseases, especially on devices that are not flagships of this year.
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Before buying, be sure to read the feedback on the forums (4PDA, Reddit) specifically about your smartphone model over the past 3 months.
Below is a table showing the typical problems of different smartphone series:
| Series of devices | Typical problem | Frequency of occurrence |
|---|---|---|
| Redmi Note (budget) | Interface brakes, little memory | Tall. |
| Xiaomi (medium) | Heat, banner ads | Medium |
| Xiaomi Mi / Digital | Camera bugs, strange color rendering | Low. |
| POCO (Gaming) | Problems with the motherboard (dump) | Medium |
Building quality and hardware compromises
To offer a low price, the manufacturer has to save on materials and components. Budget and mid-budget models often use low-quality plastic that scratches quickly and looks cheap. Even more expensive models can find uneven gaps between the case and the screen or backlash buttons.
Screens are a separate topic to talk about, while flagships get great. AMOLED-Matrices, in the mass segment are often found IPS-screens with low brightness and poor viewing angles. OLED-Xiaomi displays often have a low frequency, which can cause eye fatigue and headache in the senses.
Camera modules are also subject to tight cost optimization. Megapixels can be a lot (108 MP, 200 MP), but the physical size of the matrix remains small. This leads to mediocre photo quality in low light, noise and problems with dynamic range. Video is often written with strong jerks and poor sound.
- 📉 Use of cheap vibrating motors instead of linear (in most models).
- 📉 Lack of water protection even in top models of past years.
- 📉 Glass back cover, which is instantly covered with fingerprints.
Why are motherboards falling off?
Overheating and processor trotting
Many Xiaomi smartphones are known for their tendency to overheat, not just gaming machines but also workhorses. When you’re actively loading, charging, or even just using navigation, the body can heat up to uncomfortably high temperatures. Trotting (reduced performance for cooling) turns on very quickly, turning a powerful processor into a slow one.
The problem is compounded by the use of processors that are hot themselves (such as some versions of the Snapdragon 8 Gen 1), combined with a thin body and (a lack of) an efficient cooling system.In summer, the phone may simply fail to work or shut down.
adb shell dumpsys thermalsThis command (for advanced users) allows you to (see) the current temperature of the sensors, but it will not help the average user!
⚠️ Warning: Long-term use of an overheated smartphone causes battery bloating and degradation of the adhesive holding the screen.Do not leave your phone in the sun or on the torpedo of the car.
Difficulties with updates and support
While Xiaomi has long-term support for its devices, it often looks different in practice, with global firmware versions coming out late compared to Chinese ones, and sometimes waiting for Android to be updated for the European market can take six months or more or not come at all.
In addition, the update can “brick” the device or bring new bugs that were not in the old version.The procedure for unlocking the bootloader, necessary to install custom firmware or obtain root rights, has recently become very complicated, now requiring an account with a high level of activity in the MIUI community and waiting in line for up to 7 days (and sometimes up to a month).
☑️ Check before buying used Xiaomi
Official service centers are also not always happy with the quality of service, repairs can be long due to lack of spare parts, and warranties are often denied, citing “mechanical damage” or “moisture traces”, even if the phone is not dropped or urinated.
Privacy and security issues
Data collection is what makes Xiaomi’s smartphone really bad in the eyes of paranoid and security experts, and the firmware code has repeatedly found traces of telemetry being transmitted to servers in China, and while the company claims that the data is impersonal, it’s hard to deny that it’s collected.
Embedded antivirus and cleaners that are part of MIUI often work incorrectly, marking secure applications as malicious or, conversely, skipping real threats. Dependence on Xiaomi cloud services also poses risks: if your account is blocked (sometimes automatically and without explanation), you can lose access to the device and data.
- 🔒 Transfer of geolocation and application usage data to remote servers.
- 🔒 The difficulty of fully deactivating Xiaomi system services without losing functionality.
- 🔒 Risk of blocking the device by IMEI When buying "grey" versions from China.
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If data security and stability out of the box are critical, it’s worth considering alternatives with a pure Android or a stricter privacy policy.
In conclusion, a "bad" or "good" smartphone is a relative concept. Xiaomi offers a great set of specs for its price, but the price for it is your time to set up, put up with advertising and possible hardware trade-offs. For an enthusiast willing to refashion the phone and customize it for himself, this is a great choice. For a user who needs a "buy and forget" device, the disadvantages can outweigh the pros.