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(Galaxy Tab) Player Errors

Notice

This document is a machine-translated draft and is currently undergoing review. Some content may be inaccurate or differ from the original Korean version. For the most precise information, refer to the Korean documentation.

"Content can only be played in a Windows environment." error message​

Cause a: samsung browser desktop version setting error​

After a Galaxy Tab software update, the default setting of the Samsung Browser app may be forcibly changed to [View as desktop version]. This causes the player to mistake the tablet for a Windows PC and display an error message.

Solution​

  1. Launch the Samsung Browser app on your Galaxy Tab.
  2. Tap the bottom menu (or the three-dot icon) and select [View as mobile version] (or disable desktop version).
  3. After changing the setting, fully close the browser and reopen it to try watching the video.
  4. If the same issue persists after the above steps, install Chrome or Naver Whale and try playing the content there.

Cause b: samsung dex mode is enabled​

If your Galaxy Tab is connected to a monitor or Samsung DeX operating system mode is turned on from the tablet itself, the Kollus Player will not run due to security policy.

Solution​

Swipe down from the top bar of your Galaxy Tab to open the Quick Panel, then tap the [DeX] icon to exit DeX mode.

Settings screen or wi-fi settings screen appears when launching the player​

Cause​

This occurs because the temporary file storage space (permission) required for video playback has not been granted. You need to grant the correct permissions to the player app.

Solution​

Menu names may vary slightly depending on the Android version.

  1. Go to [Settings] > [Applications] on your Galaxy Tab.
  2. Tap [More options (⋮)] > [Show system apps] in the upper right corner. (Skip this step if Kollus Player is already visible in the list.)
  3. Find and select [Kollus Player] from the application list.
  4. Select [Permissions] > [Storage] (or Files and media) and change it to [Allow].
  5. If there is a [Modify system settings] option on the app settings screen, change that to [Allow] as well.

"Screen overlay detected" warning​

Cause​

A software that is always displayed on top of other apps — such as a blue light filter app, screen recording app, or messenger floating widget — is active, causing the player's security module to block execution.

Solution​

  1. Fully close any other applications that may interfere with playback.
  2. Go to [Settings] > [Applications] > [three-dot icon in the upper right] > [Special access] > [Appear on top] on your Galaxy Tab.
  3. Temporarily turn [OFF] any background apps that are currently enabled, then relaunch the player.

No audio output​

Solution​

  • Check device version: Older Galaxy Tab models may not support normal playback due to hardware limitations. Verify that your device is running at least Android 4.0 (Ice Cream Sandwich).
  • Check browser mute status: In the detailed settings of the tablet's default internet browser (e.g., audio mixer settings in legacy IE-based environments), a specific browser app itself may be muted. If there is no sound when the earphones are disconnected, check the per-app volume mixer in the audio settings, or use the Chrome browser, which has better audio codec compatibility.

Playback error when using Chrome browser​

Cause​

After a Chrome browser update, the Chrome default on Android tablets including the Galaxy Tab was forcibly changed to desktop site mode, causing a conflict with the existing mobile playback method.

Solution​

Disable the desktop site display setting in Chrome.

  1. Tap the menu (⋮) in the upper right corner of the Chrome browser.
  2. If the [Desktop site] checkbox is enabled, tap it to disable it.
  3. Refresh the page and try playing the video again.
  4. If the issue persists, try watching using a browser other than Chrome.

Full screen mode not applied​

Cause​

On some Galaxy Tab models, app screen rotation and full-screen switching may be restricted by system settings.

Solution​

  1. Swipe down the status bar at the top of the screen to open the Quick Panel, then tap Settings (gear icon).
  2. Select [Advanced features] from the left menu.
  3. Select [Labs] from the right menu.
  4. Select [Auto rotate app].
  5. Find and select [Kollus Player] from the app list.
  6. Select [App default].

Google account error​

Symptoms​

The Kollus player app cannot be installed or updated from Google Play.

Cause​

The user's Google account data is corrupted, or a store authentication error has occurred.

Solutions​

  • Remove Google account: Go to [Settings] > [Accounts and backup] > [Manage accounts] > select the account to remove > [Remove account], then sign in with a new account.
  • Clear Google Play data: Go to [Settings] > [Apps] > [Google Play] > [Storage] > [Clear data] and [Clear cache].