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1. Download the installation file with the extension *.apk to the device. To update the application version, you need to install a new file without deleting the old one.
2. If there is a ban on installation from suspicious sites on the device, you should first remove the restriction.
3. Install the APK file using the file manager. We recommend using Total Commander.
4. If there is no cache, you need to run the application. Otherwise, you need to install the cache.

Step-by-step instructions are provided here.

1. Install and open the utility Split APKs Installer.
2. On the "Install" tab, click on "Install APK".
3. Click on the "Built-in filepicker".
4. When prompted to grant permission to access files, click "Allow".
5. Select the APKS file.
6. Click "Install".

Detailed instructions with screenshots are provided here.

1. Open the program XAPK Installer.
2. At the first launch of the application, grant permission to access files and install packages.
3. Find the required XAPK file via the "Automatic search" button ".XAPK files".
4. Click on the green square with an arrow next to the desired application.

You can read the step-by-step instructions here.

1. Load the cache file.
2. Unzip the cache folder in /Android/obb/.
3. The required result will look like this: /Android/obb/cache folder/file *obb.

Step-by-step instructions with screenshots are provided here.

1. Click on the "Subscribe to updates" button and enter your email.
2. Go to the email, open the received email and click "Subscribe".

Step-by-step instructions are provided here.

1. Reconnect to another Internet network.
2. See how much free space is available on the device. If there is a lack of memory, you should delete unnecessary files, transfer the content to another medium using Total Commander.

Step-by-step instructions to fix the problem are provided here.

1. To fix a possible software failure, restart your phone or tablet.
2. Make sure that there is enough free space in the device's memory. If necessary, increase the unallocated space by transferring files and applications to the memory card using a file manager, for example, Total Commander.
3. Perform an antivirus scan using, for example, Dr.Web Light.
4. Remove the ban on installation from unknown sources.

The detailed procedure of actions with screenshots is given here.

1. On the internal drive, go to /Android/obb/. Check the presence of a directory with a cache. If the folder is not found or the *.obb file is missing, reinstall the cache.
2. If an error appears when unpacking the archive, check the memory status. If there is no free space, you need to clear the device of unnecessary files by deleting or transferring content to another medium. In this case, you should use a file manager, for example, Total Commander.

Step-by-step instructions are provided here.

1. Click the "Download" button located next to the application name.
2. Click on the desired file option and wait for the full download to the device.
3. If the problem persists, perform steps 1-2 in a different browser, for example, Google Chrome.

Step-by-step instructions are provided here.