Black OS

1. Start by clicking on the "Download from Theme store" button.
2. An open window will appear; please select the Theme store.
3. If you don't see the theme store app, you can try opening it through the different browser.
4. Watch a tutorial on how to open the themes link in case it's not opening.
5. After successfully opening the theme store, click on the download button.
6. Wait for the download to finish.
7. Apply the downloaded Black OS theme and enjoy.

1. Download MTZ Tester from the Google Play Store and open the app.
2. Inside MTZ Tester, tap on "Choose MTZ."
3. When prompted, browse to the directory where your Black OS MTZ file is located.
4. Select the Black OS MTZ file from your storage.
5. Tap the "Apply" button to set the chosen Black OS MTZ theme.
6. If you are a Global Theme Store user, you might be asked to select the MTZ file again.

1. Download the Black OS theme from our website. In case you encounter issues with MTZ file downloads, we recommend watching our tutorial for assistance.
2. Open the Themes app on your HyperOS custom ROM and select "My Account."
3. In the "My Account" section, you will find a list of all the themes you've downloaded.
4. Scroll down to the bottom of the list, where you will find an "Import" button. Click on it.
5. Select the downloaded Black OS MTZ theme, and then apply it to customize your device's appearance permanently.

1. Download the Black OS MTZ theme file from the provided link above.
2. Download "HyperOS Theme Editor" from the Google Play Store.
3. Open the "HyperOS Theme Editor" app on your device.
4. Select the "Browse" option and locate the Black OS MTZ file you downloaded earlier.
5. Select the "Start" option to begin the theme installation process.
6. Next, select the "Next" option to proceed with the installation.
7. Now, select the "Finish" option to complete the installation process.
8. A message will appear, prompting you to install the theme. Select the "Install" option to confirm.
9. The Black OS theme has been successfully installed. Go to the Theme Store, and you will see the third-party theme you installed. Click on it and select "Apply."

Note: Your theme will be applied but it will not show as applied in your theme center

1. Go to the Play Store and install "Theme Swap."
2. Open Theme Swap and click on the "+" plus button at the bottom of the app interface.
3. Select the .mtz file of the Black OS theme you want to install. Click on the Hamburger Menu at the top left corner for the File Manager.
4. Tap "OK" and wait for the file to be unpacked.
5. Click on the Black OS theme name and select "Theme Pack" and then "Apply."
6. A prompt will appear: "Theme Packed. Apply Now." Click "Yes" to apply the theme.
7. And there you go! Your Black OS third-party theme has been successfully installed.