Developer Menu (Expert Settings)

This page explains the settings options of the viewneo Player App on Android-based viewneo devices. A distinction is made between device settings and player settings.

Note

The expert settings are available on all Android devices. Unavailable options are displayed grayed out depending on the device. These settings do not apply to Windows and iOS.

Device Settings vs. Player Settings

Type	Description	Access
Device Settings	System settings of the Android device (WiFi, Ethernet, resolution, language, reset)	USB mouse
Player Settings	Settings of the viewneo Player App (synchronization, cache, display, developer options)	Long press on the viewneo logo

The device settings are documented on the respective device pages:

• viewneo 4K SignageBox III
• viewneo 4K SignageBox II
• viewneo 4K SignageBox
• viewneo SignageStick 2
• Qbic FHD-100

Accessing Device Settings

1. Connect a USB mouse to the player
2. Double-click on the screen
3. Click the lock icon (upper right)
4. Select System
5. Select Settings

Accessing Player Settings

1. Connect a USB mouse to the player
2. Double-click on the screen
3. Click the lock icon
4. Move the cursor to the viewneo logo (upper left)
5. Hold the left mouse button for approximately 2 seconds

White Label

On White Label devices, there is no viewneo logo. Instead, click and hold the page title text (About or System).

Alternative Access

In the player menu, you can also switch to the System tab and hold the Settings button to open the developer menu.

Note

Changes are saved via the Save button.

Developer Menu

The developer menu contains advanced settings for the viewneo Player App. It is divided into five tabs: Main, Player, Device, Apps, and Info.

Caution

Incorrect settings in the developer menu can affect playback behavior. Only change these values if instructed by viewneo support or if you are certain of what you are doing.

In the title bar at the top right, there are three icons (from left to right):

Icon	Function
Gear	Opens the Android system settings
Power	Opens the power menu (see below)
Restart	Restarts the Player App

The power menu offers the following options:

Option	Description
Power off	Turns off the device
Reboot	Restarts the device
Reboot into bootloader	Boots into the bootloader (developers only)
Reboot into recovery	Boots into recovery mode (developers only)
Factory reset	Resets the device to factory settings

Danger

Factory reset permanently deletes all data and settings. Only use this option when instructed by viewneo support.

Main

The Main tab contains connection settings, app settings, logging, and developer options.

Connection

Setting	Description
Custom server	Enables a custom CMS server
Reports server	Enables a custom reports server
Realtime server	Enables a custom realtime server
Update server	Enables a custom update server

Caution

Only change the server settings when instructed by viewneo support. Incorrect values can prevent the player from connecting to the CMS.

Via the <·> icon next to each server setting, a dialog opens with the following network options:

Option	Description
Do nothing	No action on connection issues
Counted reboot	Reboot after a certain number of failed connection attempts
Disable reconnection	Disables automatic reconnection

App settings

In the App settings area, there are several icons on the right (from left to right):

Icon	Function
Warning icon	Shows the Android permissions of the Player App
Update device (forced)	Forces the current settings from the CMS
App update	Sets the update settings. Only change when instructed by support.
Delete settings	Deletes saved data (see below)

Delete settings opens a dialog with the following options:

Option	Description
All data below	Selects all following options at once
Saved Wi-Fi credentials	Deletes saved WiFi credentials
Server configuration	Resets the server configuration
Cache of the downloaded files	Deletes the cache of downloaded content
App & web cache folders	Deletes the app and web cache

After making your selection, you can confirm the action via Delete & Restart or reset the selection via Reset.

The warning icon opens a dialog with an overview of the Android permissions required by the Player App:

Each permission is color-coded: green (granted) or red (missing). For missing permissions, the button on the right (Ask for permissions or Open settings) can be used to trigger manual confirmation.

Note

The permissions overview is only relevant for non-viewneo devices. On viewneo devices, permissions are granted automatically.

Setting	Description
Run on boot	Starts the viewneo Player App automatically on device startup (Enabled, Force start, or Disabled)
App restarts on going to background	Prevents the Player App from being closed or sent to the background (e.g., by user action)

Note

These settings are primarily relevant for non-viewneo devices. On viewneo devices, these options are already correctly preconfigured.

Logging

The Logging area is exclusively for troubleshooting and should only be used when instructed by viewneo support.

Next to the heading, there are three icons (from left to right):

Icon	Function
System log (LogCat)	Shows the Android system log
Player logs	Shows the player logs
Send logs	Sends the player logs to viewneo support

Setting	Description
Save LogCat	When enabled, the Android system logs (LogCat) are saved to the player logs. Used for extended troubleshooting by support.

Developer options

Caution

These options are exclusively for local troubleshooting by the viewneo team and should not be enabled by end users.

Restart the app

Manually restarts the viewneo Player App.

Player

The Player tab controls playback behavior and is divided into four areas: Playback, Web, Interaction, and Miscellaneous.

At the top right, there are three icons (from left to right):

Icon	Function
RSS test	Downloads the RSS feed configured in the CMS
Download media	Downloads the media files
Remove media	Removes all downloaded media files

Playback

Setting	Description
Use MultiFrame feature	Enables MultiFrame playback for multiple simultaneous content items
Restart delay option	The app is periodically restarted to prevent memory leaks with web content. Modes: Disabled (recommended only for pure image/video playlists), Scheduled (restart at a set time), or Counted (memory-intensive content is counted by weight — when the limit is reached, a restart occurs, and the playlist resumes at the same position). Change at your own risk.
Restart delay multiplier	Increases the restart delay by up to 100x. The higher the value, the less frequent the restart (change at your own risk).
Play images with	Rendering method for images: Picasso (default, sharp display, no smooth transition), WebView (display in web browser), or Default (standard Android rendering, may cause memory leaks)
Memory usage of the app	Increases the cache for faster image loading. May cause memory leaks (change at your own risk).
Apply rotation also to the image	Also rotates images according to the rotation settings. Helpful for portrait display on devices that do not support portrait mode.
Play videos with	Choice of rendering method for videos: Texture (CPU) or Default (GPU). Via the list icon, the method can be configured separately for portrait and landscape mode.
Play YouTube videos with	Rendering method for YouTube videos: In-app (Crosswalk) (only for Android 5) or System (WebView) (for all other Android versions)
Show next content only then, if ready	Waits until the next content item (e.g., external website) is fully loaded. The current content may be displayed longer as a result. When enabled, the animation time between images and videos can be set in milliseconds.
Additional encoding detector for RSS feed	Enables additional character encoding detection for RSS feeds

Web

Via the browser icon next to the heading, you can load a custom website for preview. If additional engine settings are available, they can also be adjusted there.

Setting	Description
Play websites with	Rendering method for websites: In-app (Crosswalk), System (WebView), or In-app (Gecko). Via the list icon, a menu opens where the engine can be configured individually per content type (see below).
Cache option	Cache settings for internal and external websites. Can reduce load time. For frequently changing content, select “no cache”.
Use a new session for each website	Each website call runs in its own session (the previous one is closed). Gecko only.
Try to accept cookies automatically	Attempts to automatically accept cookie consent banners on websites. Gecko only.
Additional reload of the loaded website	Reloads the website after the initial load. Can help make content visible.
”viewport” HTML meta tag	Enables support for the viewport meta tag. Can improve rendering but may also worsen it. When disabled, the layout width always matches the browser width in CSS pixels.
Zoom	Enables zoom controls and gestures in the web browser. Some websites use zoom for correct positioning — this option can help with such pages.
Video player for stream	Uses a video player instead of the web browser for streaming content. Filters URLs by extension (e.g., .m3u8, .mp4).
Desktop user agent	By default, web servers detect the Player App as a mobile application and serve a mobile website. This option forces loading of the desktop version. The user agent can be overridden if needed.

The menu lists all content types (e.g., Generic Website, Interaction, Slide, Plugins) and allows individual assignment of the browser engine. Via Set all to, the selection can be changed for all types at once, and via Reset to defaults, the values can be reset to their defaults.

Interaction

Setting	Description
Show button to disable lock screen temporary	When enabled, a monitor icon appears in the upper-left corner during playback. Clicking it temporarily disables the screen lock, allowing the displayed website to be used like a browser (e.g., for login or cookie consent). The lock is automatically re-enabled when the entry finishes playing.
Lock screen	Enables the lock screen for the interactive website. Must be enabled when the system navigation bar cannot be hidden.
Navigation bar	Shows Home, Back, and Forward buttons for navigation in interaction mode
Back button on playback	Shows a back button for navigating to the previous playback entry. Only works with playlists that have events and touch interaction.

Miscellaneous

Setting	Description
Show event logs during the playback	Shows event logs during playback: Disabled, Local logs (player logs), or LogCat (Android system log)
Show debug information about the playback	Shows debug information during playback: entry index, Playlist name, entry name, and countdown. After enabling, the text color can be changed (Red, Blue, Green, Yellow, Black, White).

Device

The Device tab contains hardware, display, and system settings.

Hardware

Setting	Description
Bluetooth	Enables or disables Bluetooth
Wi-Fi	Enables or disables Wi-Fi. Via the list icon, a different WiFi network can be selected and connected (as during initial setup). This causes the app to save the WiFi credentials for automatic reconnection.

Display

Setting	Description
Change LCD density (DPI) to	Changes the system DPI setting (160–480 dpi). Also affects the web browser resolution (e.g., 160 dpi = 1920x1080, 240 dpi = 1280x720).
Change display mode	Shows all available display modes and changes the mode immediately
Use this mode as default	Sets the selected display mode as the default, applied at every system startup (change at your own risk)
Change HDR mode to	Forces a specific HDR mode (Off, On, Auto)
Change rotation degree to	Rotates the display by 0°, 90°, 180°, or 270°. Settings in the CMS account (under Devices/Device Groups) are not overridden.
Override screen scale	Overrides the screen scaling. Settings in the CMS account are not overridden.

System settings

Setting	Description
System UI (Navigation bar)	Shows or hides the system navigation bar. Only takes effect in setup or menu mode.
Soft keyboard system-wide	Enables the on-screen keyboard system-wide. Only disable this option if a hardware keyboard is used exclusively.
Automatic date & time	Enables automatic date and time setting. Disabling prevents the app from automatically enabling this setting in the system settings.
Automatic timezone	Enables automatic timezone detection. Disabling prevents the app from automatically enabling this setting in the system settings.
NTP server	Configures the NTP server for time synchronization. Helpful if your network blocks the default NTP server. The NTP server can be changed by clicking on it.
Additional online time check	Enables an additional time check via timeapi.io for comparison
System reboot	Enables automatic system reboot at a set time. Enable this option if you experience issues with the player hardware or HDMI-CEC.
Only on standby	Automatically restarts the device if it has been in standby mode for more than 24 hours. Prevents system failures during extended inactivity.

Serial port

Via the list icon next to the heading, the list of supported USB devices is displayed. Via the + icon, custom devices can be added.

Setting	Description
Use default settings	Uses the default settings for the serial port. When disabled, baud rate, data bits, stop bits, parity, and format can be configured manually.
Connect	Establishes the connection to the serial port. After connecting, commands can be sent via the text field and responses received. Used for testing serial devices connected via USB.

Apps

The Apps tab shows all installed applications on the device.

Caution

Do not install or uninstall additional apps unless instructed by viewneo support.

Info

The Info tab displays comprehensive system information. All entries are read-only.

Display

Information	Description
DPI	Current screen density in DPI
Resolution	Current screen resolution (width x height)
Orientation	Current screen orientation

Hardware

Information	Description
CPU freq	Current CPU clock frequency
CPU usage	Current CPU utilization in percent
CPU temperature	Current CPU temperature
RAM total	Total RAM
RAM usage	Used RAM
RAM temperature	Current RAM temperature
Storage (Internal)	Free and total internal storage
Storage (External)	Free and total external storage

Network

Information	Description
Bluetooth MAC	Bluetooth MAC address
Ethernet MAC	Ethernet MAC address
Wi-Fi MAC	WiFi MAC address

Connection

Information	Description
NTP	Current NTP server
MAC	MAC address of the active connection
Last connection	Time of last server connection
Network type	Type of the current network connection
Signal strength	Signal strength of the current connection (only visible for WiFi)
IP address	Current IP address of the device
Subnet mask	Subnet mask
Gateway	Default gateway
DNS	DNS server

Time

Information	Description
Date	Current date and time
Timezone	Current timezone

Software

Information	Description
Build flavor	Build variant of the Player App
Config	Current configuration
ABI	CPU architecture (e.g., arm64-v8a)
Brand	Device brand
Display ID	Android display build ID
Fingerprint	Android build fingerprint
Manufacturer	Device manufacturer
Model	Device model
OS version	Android version
Product	Android product name
Serial	Device serial number
Uptime	Uptime since last reboot
UUID	Unique identifier of the player (for support requests)
Rooted	Indicates whether the device is rooted
Is launcher	Indicates whether the Player App is set as launcher
viewneo Service	Version of the viewneo Service app
viewneo Updater	Version of the viewneo Updater app
WebView	Version of the WebView component
Google Services	Version of Google Play Services

Library

Information	Description
Open Source	Shows the open-source libraries used

Compatibility

The expert settings are available on all Android devices:

• viewneo 4K SignageBox III
• viewneo 4K SignageBox II (Standard and White Label)
• viewneo 4K SignageBox
• viewneo SignageStick 2
• Qbic FHD-100
• Philips D-Line
• Third-party Android devices

Note

Not all options are available on every device. Unsupported settings are displayed grayed out. Availability depends on the hardware and Android version.