Owners of Xiaomi, Redmi and Poco smartphones often face a paradox: a system application that should be light and fast suddenly begins to consume gigabytes of internal memory, especially the Emoji Keyboard component, which in the memory management interface can be listed as “Gboard Keyboard” or “Android System Keyboard”, it is not just a small bug, but an accumulated array of data that over time significantly slows down the device.
The main reason for the space increase is because of the way modern input methods work, which is that it constantly indexes your printing habits, stores the clipboard history, caches images for quick access, and updates dictionaries, GIF-animation or copy text often, the application database inflates to unthinkable sizes, preventing the installation of new programs.
In this article, we will take a closer look at why this happens on the MIUI and HyperOS shells, and provide a step-by-step algorithm for safe cleaning, learn how to distinguish system files from garbage, correctly reset keyboard settings without losing important data, and prevent memory from overflowing again in the future.
Why the system keyboard inflates to gigabytes
At first glance, it seems that text can't take up much space. But the Emoji Keyboard is not just a set of characters; it's a complex software module that stores local copies of thousands of graphic elements. Every time you send a sticker or use predictive input, the system accesses the local cache, and over time, that cache stops automatically optimizing, especially if the synchronization processes are running in the background.
One key reason is the input personalization feature. Xiaomi smartphones by default collect statistics of frequently used words and phrases to offer them first when typed. This database is constantly growing. Also, many users are unaware that the keyboard clipboard is also stored in the app's memory. If you copied large amounts of text or pictures links, they could have stayed in hidden storage.
⚠️ Note: A sharp increase in the size of the application to 2-5 GB often indicates not only cache, but also a possible failure in logging errors, in which case a simple cleaning may not help, and a deeper intervention in the system settings will be required.
Also worth considering is updates to the component itself through Google Play Services. Sometimes newer versions of emoji libraries contain high-quality graphics files that take up significantly more space than their predecessors. If automatic cleaning in MIUI settings is set up aggressively, it can block the deletion of temporary keyboard files, considering them systemically important.
Diagnostics: analysis of the occupied space
Before we start taking drastic measures, we need to know exactly what takes up space. In modern versions of Android based on HyperOS, the storage structure has become more complex. The user needs to understand the difference between the size of the application, the size of user data and the size of the cache.
To start, go to the Settings menu. → Annexes → All apps. Search for "Gboard" or "Android Keyboard." Click on "Memory." Here you'll see a detailed breakdown. If the data section is the lion's share, it's a problem with the accumulated history and dictionaries. If the cache is bloated, it's easier to solve the situation.
Use the built-in memory analyzer to look for duplicates. Often, the Emoji Keyboard conflicts with other input applications by backing up settings that are then forgotten by the system. Check if you have multiple keyboards installed at the same time, such as the standard and Yandex Keyboard or SwiftKey. Having multiple active input engines can lead to the same resources being caching by different processes.
Note the operating system version. There was a well-known bug on older versions of MIUI 12 and 13 that didn't clear the keyboard debugging logs for months. In MIUI 14 and later, this mechanism is improved, but manual verification is still necessary for the device to function properly.
Basic cleaning of cache and data through settings
The safest and first step to take is standard cleaning through the system interface, which requires no superuser rights and is safe to guarantee the device, but it's important to understand that cleaning the data will return the keyboard to a factory state.
Follow the following steps:
- 📱 Open the settings of your Xiaomi smartphone.
- 🔍 Go to the Applications section and select All Apps.
- ⌨️ Find the Gboard list (or "Android Keyboard").
- 🗑️ Click the Clean button and select Clear the cache.
If you've left critically large storage after cleaning the cache, you've got to go ahead and clean up the data, and this action will delete all the words you've saved in the dictionary, clipboard history, and personalized topics, but it's guaranteed to free up space, and after this procedure, the keyboard will look like the day you bought the phone the first time you turned on.
☑️ Checklist for safe cleaning
Once cleaned, be sure to restart the device. Reboot is necessary to re-initialize the keyboard configuration files. Without rebooting, the file system can continue to display the old space occupied values until the next full clearing of temporary files.
Deep Cleaning Through Storage Management
When standard methods fail, you have to go deeper, and there are hidden app memory management capabilities in the MIUI shell that allow you to delete specific file types, especially if the keyboard is taking up space because of loaded language packs or themes.
Inside the settings of the Gboard app itself (you can open through the globe icon on your keyboard or system settings), find the "Advanced" or "System" section. It often stores language packs you've added but don't use. Removing unnecessary language packets can free up hundreds of megabytes. Also check the "Themes" section - the preview cache of themes can weigh a lot.
| Type of data | Wherever | Security of removal | Impact on work |
|---|---|---|---|
| Cash images. | App settings → Cash | Safe. | Slowing down the loading of stickers on first use |
| User's dictionary | Settings → Additional → Dictionary | Average (loss of words) | Decrease in accuracy of autocorrection |
| Language packages | Settings → Languages | Safe. | Inability to print in a remote language |
| Themes and background | Settings → Themes | Safe. | Resetting the design to standard |
There's also a synchronization nuance: If you have dictionary sync enabled with your Google account, after clearing the data, the keyboard may try to recover a huge amount of data from the cloud. To avoid this, temporarily disable sync in your Google account settings or keyboard settings before clearing the data.
Hidden folders in the conductor
Disabling functions that consume memory
To prevent the “Emoji Keyboard Xiaomi takes up a lot of space” problem from returning, you need to rethink the functionality you use. Modern keyboards offer many “smart” features that require large amounts of data to be stored on the device at all times.
First of all, turn off or limit the GIF and stickers. Constantly uploading and caching animated images is the main memory eater. Go to the keyboard settings, the "GIF" or "Stickers" section, and find the option to save history or caching. Disabling this feature will cause the system to download images every time, but will not save them in the phone's memory.
- 🚫 Disable the Emoji Offer based on frequency of use if you are not actively using them.
- 📉 Limit the size of the clipboard history to 1-2 element 10-20.
- 🌐 Remove language packages for offline translation if they are not needed.
You should also pay attention to the voice input function if it's integrated into the keyboard. Voice models can take up a lot of space. If you use voice dialing infrequently, it's better to use a separate application or disable the download of voice packets for offline work.
⚠️ Caution: Disabling On-device learning may reduce word prediction, but will significantly reduce the amount of logs and temporary files that often inflate the size of an application.
Alternative solutions and third-party keyboards
If the standard Xiaomi or Gboard keyboard continues to malfunction and take up disproportionately much space, it makes sense to consider alternatives.The mobile app market offers lightweight and optimized options that are not prone to sprawl.
One of the best solutions is to install a third-party keyboard, such as Microsoft SwiftKey or Typewise. These have more flexible cleaning settings and are often better optimized for memory. Once you install the alternative, you can completely disable the standard keyboard in the settings Additional settings → Language and input.
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Use Do Not Disturb Mode when cleaning: If you clean keyboard data while you’re active, the system may try to immediately restore the background processes, preferably when the phone is not being used for typing.
Another option is to use “lightweight” versions of applications, if available, or older, proven versions that do not contain heavy artificial intelligence features. APK-Files from unverified sources carry security risks, so it is preferable to use official app stores.
Remember that on Xiaomi smartphones you can disable updates to system applications through GetApps. Sometimes new versions of the keyboard contain optimization errors. If after the update the problem appeared abruptly, try to find information on the network about the bugs of a particular version and, if necessary, roll back to the previous version through ADB (for advanced users).
Preventing memory overflow in the future
To prevent the situation when the Emoji Keyboard will take up all the empty space again, make a habit of regular digital hygiene.
Set up automatic cleaning. Security (standard for MIUI) can set up a cache cleanup schedule. Although system applications are often excluded from automatic cleaning, setting up deep cleaning once a week will help delete temporary files before they reach critical volume.
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Regularly restarting the smartphone (at least once every 3-4 days) helps the system to independently reset accumulated temporary files and logs, preventing the proliferation of the keyboard database.
Keep an eye out for system updates. Xiaomi engineers regularly release patches to fix memory leaks in system components. If you see a notification about an available HyperOS or MIUI update, install it. Also keep an eye out for updates to the keyboard app itself on Google Play, as developers often fix memory management errors.
Use cloud storage to back up important data so you don’t store it locally in your application cache. If you copy large texts often, use customized clipboard applications that can compress or store data in the cloud rather than in the system’s memory.