Modern multimedia set-top boxes and TVs based on the Android operating system offer users ample opportunities to expand functionality. However, the standard Google Play Store is often limited by censorship or region blocking, forcing you to look for alternative sources of content. One of the popular requests in this segment is the installation of specialized players or utilities, such as Num application. Although there may not be an official client with this name in the store, users often look for ways to install third-party software to manage media libraries or specific services.
The process of installing third-party apps on a television platform requires certain preparation and understanding of the system security architecture. You have to bypass standard restrictions, activate developer mode and find a working installation file. In this guide, we will look in detail at how to safely install the necessary software, what tools you will need, and how to solve typical interface compatibility problems with a television remote control.
Before you begin any active actions, make sure that your device is connected to a stable Internet network. It is also recommended to have a smartphone or computer handy, as you may need them for transferring files or debugging. Remember that installing unverified software always carries certain risks, so download files only from trusted sources.
Preparing Android TV for installing third-party APKs
The first and most important step is setting up access rights in the system. By default, the operating system blocks the installation of applications from unknown sources for security reasons. To change this behavior, you need to go to the system settings of your TV or set-top box. Navigation may vary depending on the shell manufacturer, but the general path usually looks like this:
Go to the Settingssection, then find the item Security and restrictions or Applications. In some versions of Android TV, this option is hidden in the menu Device -> Settings -> Security. You need to find the switch Unknown sources and activate it. The system will issue a warning about potential risks - confirm the action.
Also, for advanced installation methods, you may need to enable USB debugging. This feature is intended for developers, but is often used by enthusiasts to control the device from a computer. Activate the item USB debugging in the same settings menu. After enabling these options, your device is ready to accept external installation packages.
⚠️ Attention: Installing applications from unverified sources may lead to infection of the system with a miner virus or spyware. Always check the hash amount of the downloaded file or use an anti-virus scanner before running the installer.
☑️ Prepare the device
Search and download application installation file
Since the app called "Num" may not be listed in the official Google directory, you will need to find its APK file online. There are many specialized repositories that store archives of mobile apps. When searching, pay attention to the version of the operating system for which the package was compiled. For TVs, versions that are optimized for large screens or have support for remote control are optimal.
Downloading can be done directly to the TV using the built-in browser, if included. However, browsers on TV often do not work correctly with heavy pages. A more reliable way is to download the file to your computer or smartphone and then transfer it to your TV. To do this, you can use:
- 📁 A regular USB flash drive formatted in the FAT32 or exFAT file system.
- 🌐 Cloud storage (Google Drive, Dropbox), which can be accessed through an application on the TV.
- 📶 Local network via the SMB protocol or special applications for transferring files over Wi-Fi.
Make sure that the downloaded version is compatible with your processor architecture. Most modern TV boxes work on the ARMv8architecture, while older models can use x86. A mismatch in architecture will result in an error during installation or the inability to launch the application.
If you are not sure about the processor architecture, download the free "AIDA64" application from Google Play on your TV - it will show the exact CPU model and supported instructions.
Installation methods: Flash Drive, File Manager and Send Files to TV
There are several basic ways to transfer and run the installation file on the device. The choice of method depends on the availability of USB ports and ease of use of the interface. The easiest option is to use an external drive. Insert the USB flash drive into the TV's USB port. The system should automatically detect the new device and offer to open its contents.
If the automatic window does not appear, you will need a file manager. Install any popular application for working with files from the store, for example X-Plore or File Commander. Open the app, find your flash drive in the list of connected devices and go to the downloaded APK file. Click on it and follow the installer's instructions.
An alternative wireless method involves using the utility Send Files to TV. This application must be installed on both your TV, smartphone or PC. Run the app on both devices, make sure they are on the same Wi-Fi network. Select the file from the sender and receive it on your TV. Immediately after downloading, the system will prompt you to install the application.
| Installation method | Transfer speed | Convenience | Requirements |
|---|---|---|---|
| USB flash drive | High | Medium | Presence of a USB port |
| Send Files to TV | Depends on Wi-Fi | High | Two devices on the same network |
| Cloud storage | Medium | Low | Account and Internet |
| Direct download | Low | Low | Working browser on TV |
Interface setup and remote control
One of the main problems when installing mobile applications on a TV is the unadapted interface. The application Num, if it was originally created for smartphones, may not respond to pressing the remote control buttons. The screen can remain static without the focus switching between controls. This is due to the lack of support for events DPAD (navigation buttons).
To solve this problem, there are special emulator utilities, such as Mouse Toggle or PC Remote. They create a virtual mouse cursor on the screen, which is controlled by the movements of the remote control or smartphone. By installing such a app, you can click on buttons inside the Num application as if you were using a touch screen.
In some cases, changing the settings of the application itself helps. Go to Settings TV, select Applications, find the installed app and try changing the screen resolution or compatibility mode, if such an option is available in your firmware. Also check if in the settings of the Num application itself there is a section “Interface” or “TV Mode”, which can be activated manually.
⚠️ Attention: Application interfaces and settings menus may change with TV firmware updates. If you do not find the described points, check the official documentation for your device model or look for up-to-date guides for a specific version of Android TV.
What to do if the application crashes on startup?
A common cause of crashes is a lack of RAM or a conflict between Android versions. Try clearing the app cache in settings or installing an older, stable version of the APK file. Also make sure that there is at least 500 MB of free space on the disk.
Installation via ADB: Advanced method for experts
For users who are not afraid of the command line, the most reliable installation method is to use the protocol ADB (Android Debug Bridge). This method allows you to install applications remotely from your computer, bypassing the TV's interface restrictions. You will need a computer with the package installed Platform Tools and USB debugging enabled on the TV.
First find out the IP address of your TV in the network settings. Then open a command line or terminal on your computer and enter the command to connect:
adb connect 192.168.1.XX:5555Replace 192.168.1.XX to the real address of your device. After a successful connection (status connected), go to the folder where the downloaded application file is located and execute the installation command:
adb install num-app.apkThe system will automatically transfer the file and start the installation process. If successful, you will see a message Success. This method is especially useful if the file manager on the TV does not see the file or if the TV interface freezes when trying to manually install.
The ADB method is the most stable installation method, as it eliminates errors associated with the operation of the TV file system and user interface access rights restrictions.
Possible errors and how to resolve them
During the installation process, you may encounter various system errors. The most common one is “The application is not installed.” This usually means a signature conflict (if there is already a different version of the app) or incompatibility of the Android version. Try uninstalling previous versions of the application before installing it again.
Another common problem is “Syntax error when parsing the package.” This is a sure sign that the file was corrupted during download or is not suitable for your processor architecture. Download the file from another source and make sure that you select the version for ARMand not for x86if you have a standard set-top box.
If the application installs, but the black screen hangs forever, it may not have enough access rights or libraries. Try granting all requested permissions manually in Settings. It is also worth checking whether the built-in antivirus or firewall is blocking the app.
- 🚫 "Storage is full" error: Clear the cache of other applications or remove unused apps.
- 🔒 "Blocked by security policy" error: Check if the "Secure applications only" mode is enabled in the settings developer.
- ⏳ Long installation: Do not interrupt the process, even if it seems to be stuck. On older devices, large APKs may take several minutes to unpack.
Is it safe to install the Num application from third-party sites?
There is always a risk. Download files only from well-known forums or repositories with a good reputation. Avoid sites with lots of advertising and pop-ups. Before installation, it is advisable to check the file through online virus scanning services.
Is it possible to remove the Num application after installation?
Yes, removal is done in the standard way. Go to Settings -> Applications, find Num in the list and select "Delete". If the button is inactive, the application may have device administrator rights, which must first be revoked.
Why does the remote control not work in the installed application?
The application is not adapted for TV control. The solution is to install a mouse emulator (Mouse Toggle) or use a smartphone with a remote control application that supports touchpad mode.
Do you need Root access to install Num?
In most cases, root access is not required. It is enough to allow installation from unknown sources. Root may only be needed to deeply modify the system or remove system applications that interfere with operation.
Is the Num application updated automatically?
No, applications installed manually via APK are not automatically updated via Google Play. You will need to periodically check for new versions on the developer's website and install them manually using the same procedure.