Firmware changelog


This firmware release features a new web interface, making it easier than ever before to configure the settings of your crowdbeamer device.

This new crowdbeamer configurator includes a handy WiFi monitor visualizing the available channels, as well as a channel quality analyzer that lets you easily pick the right channel for your crowdbeamer device.

New crowdbeamer firmware - WiFi channel analyzer
New crowdbeamer firmware - WiFi channel quality

Other features & improvements include

  • AES/CCMP support for WPA2-PSK protection
  • Limitations on channel usage in 2.4GHz band have been removed
  • Disabled wireless bands are now indicated on the OLED display
  • Wired and wireless interfaces for IP addresses are now indicated on the OLED display
  • Long WPA2-PSK passwords are now readable on the OLED display
  • Several fixes
    • Minor fix in display detection
    • Fix fan operation in sleep mode
    • Fix timing for the display
    • Fix settings preservation during upgrades

Before you start any firmware upgrade process, make sure the crowdbeamer device is connected to the power grid.


New features & improvements

  • Completely new kernel
  • Robust recovery OS upgrade
  • Improvements on WiFi support
    • Support for 5GHz DFS channels
    • WiFi regulatory domain selection based on country selection
  • User data reset will set the SSID to be unique
  • Several fixes
    • Fix unwanted user data resets when in recovery mode
    • OLED IP display issues
    • random “Freezing execution” system crash
    • blank web pages after power failure

Download firmware v2018.06.01


New features & improvements

  • Hardware improvements
    • Better battery management, increasing reliability of the battery
    • Reduced fan noise, offering a higher use comfort during presentations
  • As from hardware revision H
    • Alerts can be set on fan error conditions and low battery mode
    • Alerts are announced by the device’s buzzer


New features & improvements

  • System settings can be restored from Recovery Mode in case the crowdbeamer device fails
  • If the device button is set to „Generate new WiFi key“
    • WPA2 protection is automatically activated
    • a warning is issued, informing the user that it will be required to reconnect to the device using the new key
  • Improved web administration interface
    • Output resolution options are sorted in numerical order
    • Tooltips provide user assistance upon mouseover
    • Factory reset button enables to restore the device to its initial state
    • Display of
      • current device temperature
      • current speed of built-in fan
    • Improved operational performance of device
      • Device IP address is shown on OLED display
      • Preferred input resolution has been changed to 1920x1080p30
      • Automatic frame rate adjustment ensures smoother playback
      • RGB888 is now used on the output side whenever possible
      • The built-in fan automatically stops each time the device enters into sleep mode

Firmware fixes

  • Correct battery status notification when device is turned off
  • New device configuration options are now properly merged with existing options during firmware upgrade
  • Fixed ESD resistance (e.g. occasional OLED freezes, rolling screen effect)
  • The automatic detection of the RGB color space now works as intended
  • The „Bye“ message no longer gets halted on the OLED display after powering off the device


  • Sleep mode
    • Lower power consumption
    • No video output and no streaming functionality
    • Possible options:
      • Never go to sleep
      • Go to sleep when there is no active input
      • Go to sleep when there are no clients connected
      • Go to sleep when there is no active input and there are no clients connected
  •  Autostart option (automatic POWER ON)
  • Customizable button function
    • Possible options:
      • Block output
      • Generate new WiFi key
      • None
  • Show WiFi client limit on OLED
  • EDID can be downloaded (for support purposes)
  • Possibility to set color space to fix color problem when using Apple devices through a splitter
  • The option to enforce the output resolution has been expanded with new resolutions


  • Option to hide the WiFi password on the OLED
  • Option to enforce the input‘s color space (auto, RGB, YUV)
  • Option to enforce the output resolution to 1920×1080 @60Hz or 1360×768 @60Hz
  • The Status page on the Web Interface updates faster (every 0.25 second)
  • Option to upload up to 5 bypass images and select one active bypass image
  • Detect and indicate invalid HDMI input resolutions on OLED with the message „UNSUP“
  • Broadcast stream reacts faster to input and output changes in some cases
  • The device no longer enters or leaves blocked mode randomly during ESD events
  • Semi-automatic firmware update is disabled when there is no Ethernet connection
  • When using displays with a higher native resolution than 1920×1080 @ 60Hz, the output is fixed at 1920×1080 @ 60Hz
  • WiFi channel selection is limited to valid choices only
  • Changing the WiFi client limit by registering does not need a restart anymore
  • Automatically update the Status page on the Web Interface every 5 seconds


  • Initial release