Xiaomi's modern smartphones are famous for their functionality, but aggressive optimization of MIUI or the new HyperOS sometimes works against the user. You may notice that notifications from instant messengers come late and battery power melts in front of your eyes, even though you do not use the phone actively.
Many users mistakenly believe that closing the app window with a swipe completely stops it from working. In fact, the Android operating system allows processes to continue in hidden mode for quick reboot and background synchronization. To regain full control of the device and extend battery life, you need to manually change the settings for each important application.
In this guide, we will take a look at all the available ways to limit background activity, learn how to properly adjust energy saving, disable auto-start, and use hidden developer features, which will allow you to find a balance between performance and battery savings.
Why apps continue to work after closing
The Android architecture is designed to be multitasking, which means that the system can keep multiple processes running at once. When you swipe an application off a recent list, the system doesn't always force the application to end its main process, instead it puts the program in a standby state or allows background services to be performed for important tasks.
Software developers often implement mechanisms that wake up a device to synchronize data, check for updates, or display ads. In a MIUI shell, these processes may be less optimized than in Android’s stock, resulting in increased CPU resource consumption.
In addition, many services are tied to system libraries, allowing them to restart automatically even after a manual stop. Without properly configuring the battery settings, the phone will constantly expend power to keep programs that are currently unnecessary running, and understanding this mechanism is the first step to efficiently managing energy.
⚠️ Warning: Completely limiting background activity for Google system services or security services may cause Play Market Store malfunction and loss of geolocation.
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Use the built-in battery analyzer to identify the “gluttonous” applications that consume the most power in standby mode.
Customizing battery limitations for a specific application
The most efficient and safest way to stop unnecessary activity is to customize the power saving settings for each software installed. Xiaomi's system allows you to flexibly manage how long a program can remain active after you stop using it.
First, you need to open your smartphone settings and go to the app section, and find a program you're interested in, like a social network or a game that often hangs in the background, and inside the app menu, you need to find a battery or energy-saving item.
Here you'll see a few behaviors: Select No Limits mode if you need instant notifications, or Limit Background Activity mode if you only need the app when you're using it, and this change will take effect immediately.
After settings are applied, the system can show a warning that notifications may come with a delay. This is normal behavior with the selected restriction. If the application is critical to you (for example, a messenger for work), it is better to leave the standard settings for it, but turn off auto-start.
Managing Auto Start and Hidden Settings
One of the main reasons for battery failure is auto-start, and many programs prescribe themselves in start scripts to run immediately after the phone is turned on or after another application is closed, and there is a separate tool in the MIUI shell to control this process, which is often hidden from the eyes of the average user.
To access advanced settings, go to the security menu or search for settings by typing "Out-run." Here you will see a list of all programs that have permission to run with the system. Disabling autorun significantly speeds up the phone's turn on and reduces the load on RAM in the first minutes of operation.
You also need to look at the hidden settings of the developer, and you need to click on the build number several times in the About section to activate them. In the menu that appears, look for the "Background Process Limit" option, and you can set a hard limit, for example, no more than two processes at a time.
Using these tools requires caution. If you turn off auto-start for system components, the phone may start to work unstable, and it is recommended that you only turn off this feature for third-party applications that you installed yourself from the store.
Use of energy saving regime
Xiaomi has built-in power saving modes that automatically apply a set of constraints to the entire system, activating the "Energy Saving" or "Ultra-Saving" mode forcibly stops background synchronization, reduces brightness and limits the processor.
The good thing about this method is that it doesn't require manual adjustment of every application, but it's a blunt tool, a crude tool that can degrade the user experience, such as in ultra-saving mode, desktop widgets and live wallpapers can stop working.
You can set this mode to automatically turn on when you reach a certain percentage of charge, which is a useful feature for situations where there is no charger at hand and the phone needs to be saved for the rest of the day, and the system will decide which processes to suspend first.
Use this tool consciously when the priority is work time, not functionality.
Comparison of process stop methods
There are many ways to combat background activity, and each has its pros and cons. To make it easier for you to choose the right strategy, we have prepared a comparative table of the main methods available in Xiaomi smartphones.
The performance is assessed on a scale of 1 to 5, where 5 is the maximum effect, and the impact on the stability of the device and the timeliness of receiving notifications is also taken into account.
| Method | Efficiency | Impact on notifications | Difficulty |
|---|---|---|---|
| Limitation in battery settings | 4/5 | Possible delay. | Low. |
| Shutting down autostart | 3/5 | No change. | Low. |
| Energy saving regime | 5/5 | Total shutdown | Low. |
| Process Limits (Dev Options) | 5/5 | Critical disruption | Tall. |
As you can see from the table, the most balanced approach is a combination of disabling autostart and customizing the battery, and using developer limits is recommended only for advanced users who understand the risks.
Frequent errors in optimization
When users try to get the most out of the battery, they often go to extremes, which backfires, and one of the most common mistakes is to manually clean the memory through the garbage button, which MIUI sees as a signal that you don't need the application, and then it starts it up again, consuming even more power.
Another mistake is to turn off all background data, which makes the smartphone “stupid”: you won’t get a call through Viber or Telegram until you unlock the screen and open the app, and the background data is necessary for most modern services to work correctly.
Also, you should not install third-party "task killers" from the app store. In modern versions of Android, they work incorrectly and often themselves are a source of advertising and battery discharge.
⚠️ Warning: Installing third-party memory cleanup applications can lead to shell conflicts and banner ads on the lock screen.
The best strategy is to configure important applications once and forget about it, and micromanaging processes constantly wastes your time and nervous system without actually increasing your autonomy.
Additional features of the HyperOS shell
With the release of the new HyperOS shell, which replaces MIUI, memory management algorithms have become even more aggressive, with the introduction of the Memory Extension feature, which uses part of the storage as RAM, and although this speeds up the performance of heavy games, it can interfere with the proper completion of background processes.
Newer versions of firmware have added enhanced permission control, so you can now deny an application access to the network in the background, leaving access only when you're in active use, and this is the perfect setup for programs that don't need a permanent connection to the server.
Check the Security section in the new settings, and there are detailed statistics showing how many times the app has woken up the screen or started processes in the last 24 hours, which helps identify hidden miners or poorly optimized software.
Using all the features of the new system allows you to achieve record levels of autonomy, but users of older models should be careful with the innovations, as they may be too heavy for the old hardware.