Turn on your device and make sure it's connected to the Internet.

Go to the main menu and navigate up to reach the search bar.

In the search bar, type 'Settings' and select the 'Settings' option that appears in the search results.

In the Settings screen, select 'Device' or 'My Fire TV,' depending on the version of Fire Stick you have.

Next, select 'Developer options' or 'Developer options.'

Turn on the 'Unknown sources' option. A warning will appear; click 'Accept' to proceed.

Now, go back to the main menu and navigate down to reach the search bar again.

In the search bar, type 'Downloader' and select the 'Downloader' option that appears in the search results.

Install the 'Downloader' app on your Fire Stick.

Open the 'Downloader' app. When prompted to allow access to files and storage, select 'Allow'.

In the address bar of 'Downloader,' enter the number: 1344338

Click 'Download' to start downloading Stream Player on your Fire Stick.

Once downloaded, select 'Install' to install the Stream Player app on your Fire Stick.

After installation, select 'Open' to launch the Stream Player app.

Select 'Login with new User Account'.

Enter your login credentials provided by your TV provider, including your username and password.

If the data is correct and the connection to the server is successful, will log in to your account.

Click on the settings symbol.

Click on 'Language' or 'Idiomas'.

Select 'Spanish'.