Dune Firmware Zone


Dune HD Pro 4K II


Version "240619_0210_r22" (BETA version)
Download: dune_firmware_tv175h_240619_0210_r22.dff
Changes since 240123_0207_r22:
This version brings various new features and improvements previously implemented for new Dune HD models (such as Dune HD Pro One 8K Plus), see here for more details: https://dune-hd.com/firmware/proone8kplus/.

Note: because of big internal changes, this update could cause some regressions and new bugs (to be fixed in future updates).

Most noticeable improvements are listed below.

• Fixed various bugs specific for old models.

• Fixed various regressions, which were introduced in the previous r22 update for old models.

• Various fixes and improvements for media playback (fixed a lot of different problems, in particular, related to video playback, audio playback, subtitle playback, A/V sync and subtitle sync).

• Various fixes and improvements for GUI (in particular, related to main menu, file browser, My Collection).

• Some UI translations updated/improved.

• Minor other fixes and improvements. 

Version "240123_0207_r22" (BETA version)
Download: dune_firmware_tv175h_240123_0207_r22.dff
Changes since 230929_0206_r21:
This firmware is a major update which brings various new features and improvements previously implemented for new Dune HD models (such as Dune HD Premier 4K Pro and Dune HD Pro One 8K Plus).

Note: because of huge internal changes, this update could cause some regressions and new bugs (to be fixed in future firmware updates).

Most noticeable improvements in comparison with the previous r21 firmware versions, include, in particular:

• Fixes support for online subtitles.

• Media tags (such as 4K, HDR, etc) for files. Media tags are automatically identified based on the actual file content, and additionally can be identified based on file name. Media tags are shown in File Browser and in My Collection. Media tags can be used as browsing filters in My Collection.

• Various improvements related to the video watching marks. The information about playback bookmarks from the "Recent" database is now used in more places to indicate the watching progress. You can now manually mark files and movies as watched and unwatched in POP UP MENU.

• A lot of possibilities to customize the lists of items shown in various menus. You can now customize the top menu and the left menu in the New GUI, the lists of applications, the list of sources, the list of favorite items. You can reorder items, hide items, and change the default item for the top menu. List customization is available in POP UP MENU.

• Additional APIs for Dune HD plugins, allowing plugins to implement various new features, such as: advanced support for P2P streaming, advanced support for IPTV services with huge number (thousands) of TV channels. Support for Dune Extra premium feature which may be required to enable some of the new APIs in the firmware.

• Small changes in the list of preinstalled apps.

• Various other improvements previously implemented in "Dune HD Media Center" app for ATV models (more details: https://dune-hd.com/support/app/versions.html).

Version "230929_0206_r21" (BETA version)
Download: dune_firmware_tv175h_230929_0206_r21.dff
Changes since 230606_0206_r21:
This is a small update with small improvements (bigger updates will come with upcoming r22 versions).

• All models: Dune Extra: Added more APIs for next-generation IPTV and Movies plugins. Some other Dune Extra related improvements.

• All models: Improved compatibility with some SMB servers (such as some ASUS routers).

• All models: Improved support for My Collection in China.

• All models: Movies: When viewing person info, the maximum number of shown movies is increased from 64 to 256.

• All models: HDD sleep timer setting now has additional options: 1, 3, 5 minutes.

• All models: Sleep timer setting now has additional option: 20 minutes.

• Ultra Vision 4K, Max Vision 4K: Sleep timer by default is set to disabled.

• S905L2 models: Minor fixes in autoframerate logic.

• Models with front panel display: When playing streams with unknown duration (such as TV streams), now clock is shown instead of meaningless playback position.

• All models: Updated some UI translations.

• All models: Some other internal changes.

Version "230606_0206_r21" (BETA version)
Download: dune_firmware_tv175h_230606_0206_r21.dff
Changes since 230223_1206_r20:
This firmware version is the same as the alpha firmware version 230606_0206_r21.

More details: history of alpha firmware versions.

Version "230223_1206_r20" (BETA version)
Download: dune_firmware_tv175h_230223_1206_r20.dff
Changes since 221018_1640_r20:
This is a small update with important fixes.

• All models: Bugfix: Auto framerate switching could be wrongly used when playing a video preview in a small window in some cases.

• All models: Bugfix: Interlaced video could be wrongly detected as progressive in some cases, thus causing auto framerate switching to a wrong mode (for example, to 25 Hz insead of 50 Hz).

• All models: Bugfix: When KODI app was automatically installed (for example, as an external player), its audio settings could be set to wrong values and fixed to these values (disallowing the user to modify them). Now the user is responsible for proper configuration of KODI audio settings.

• All models: Bugfix: The procedure of upgrading firmware of Bluetooth remote could allow the user to install incompatible firmware version in some cases.

• All models: Improvement: Important fixes in some preinstalled apps.

• RTD1619/RTD1619DR models: Improvement: After factory reset, "digital audio output mode" setting is now set to "Auto" (which automatically enabled bitstream passthrough if the connected TV or A/V receiver supports it).

• All models: Minor other fixes and improvements.

Version "221018_1640_r20" (BETA version)
Download: dune_firmware_tv175h_221018_1640_r20.dff
Changes since 220915_0010_r20:
This is a small update with important fixes.

• All models: Updated the list of preinstalled apps in different regions.

• RTD1619/RTD1619DR models: Optimized audio buffering and support for A/V sync correction.

• RTD1619/RTD1619DR models: Bugfix: DD audio passthrough via MediaCodec did not work in some cases.

• RTD1619/RTD1619DR models: Bugfix: GUI could be wrongly shifted a bit relative to the video in some cases.

• RTD1619DR models: Bugfix: Information about DV codec in INFO panel during playback could be wrong in some cases (regression introduced in r20).

• S905X3 models: Power on/off could work wrongly in some cases with some Bluetooth remotes.

• S905X models: BD Lite playback did not work properly in some cases (regression introduced in r20).

• All models: Minor other fixes and improvements.

Version "220915_0010_r20" (BETA version)
Download: dune_firmware_tv175h_220915_0010_r20.dff
Changes since 220819_1253_r20:
This is a small update with important fixes.

• All models: Fixed bugs in SMB client/server functionality (regressions introduced in version 220630_0727_r20).

• Realtek models: Bugfix: When playing some BD images in Full BD Menu mode, some menu items could be invisible in some cases.

• Realtek models: Bugfix: When playing some BD images in Full BD Menu mode, timeline bar could be wrongly shown when not needed in some cases.

• RTD1619/RTD1619DR models: Bugfix: When playing some Internet streams in engine:1 mode, playback hangup could happen on playback stop in some cases.

• RTD1619/RTD1619DR models with Hi-Fi audio: Bugfix: When Hi-Fi audio output was enabled, Voice search via Bluetooth remote did not work.

• All models: Improved support for PNG images in PHP plugins and some other cases.

• All models: Updated some UI translations.

• All models: Minor other fixes and improvements.

Version "220819_1253_r20" (BETA version)
Download: dune_firmware_tv175h_220819_1253_r20.dff
Changes since 220630_0727_r20:
This is a small update with important fixes.

• All models: Fixed bugs in SMB client (regressions introduced in version 220630_0727_r20).

• All models: Fixed bugs in handling of music file tags (regressions introduced in version 220630_0727_r20).

• All models: Fixed bugs in "Edit Movie Information" function in file browser.

• All models: Fixed bugs in handling of folder settings (sort order and view mode).

• RTD1619/RTD1619DR models: Optimized audio buffering and support for A/V sync correction.

• Traveler model: Optimized handling of lamp power and battery time.

• Real Vision 4K Duo model: Optimized fan handling.

• All models: Updated/improved UI translations for some languages.

Version "220630_0727_r20" (BETA version)
Download: dune_firmware_tv175h_220630_0727_r20.dff
Changes since 220317_0257_r20:
• All models: New GUI: Global search function: it now searches not only for movies, but also for persons. Persons in search results can be browsed similarly to movies.

• All models: New GUI: Dune voice search UI: added a possibility to switch the voice recognition langauge between the choosen UI language and English. Useful when searching for English movies and the UI language is not English.

• All models: New GUI: Dune voice search UI: added a possibility to launch Google assistant from Dune voice bar.

• All models: New GUI: My Collection: Automatic reindexing can now be done more frequently than once per day (up to once per 4 hours).

• All models: New GUI: Various improvements for watch progress indication. Watch progress is now shown also for movies which are not part of the movie collection.

• All models: New GUI: Recent menu: improved handling of TV shows; some other improvements.

• All models: New GUI: Movie screen now provides "More.." button when there is more than one to watch a movie.

• All models: New GUI: Restored the possibility to search for movies also when using the old GUI version of My Collection app.

• All models: New GUI: Improved video preview. It could work wrongly and wrongly cause auto framerate function in some cases.

• All models: New GUI: Improved handling of absent or bad Internet connection.

• All models: New GUI: Improved possibilities for hiding uneeded UI functions by disabling built-in plugins in "Setup / Misc / Plugins" menu.

• All models: New GUI: Improved display of long texts in Netflix-like view.

• All models: New GUI: Improved handling of "No Internet" cases. Ensured that My Collection and other local content can be always accessed w/o Internet.

• All models: New GUI: Performance improvements and internal improvements for interaction with applications which embed their data into the new menu.

• All models: New GUI: A lot of other bugfixes and internal improvements in specific cases (various issues found during internal testing).

• All models: New GUI: Internal changes for next planned big improvements (such as media tags) (not ready yet, will come in next versions).

• All models: Added a special support for 2.35:1 displays (such as 2.35:1 projectors). It can be enabled in "Setup / Appearance / Advanced" menu. When enabled, the UI is scaled to fit into 2.35:1 area (with special handling of UI background) and subtitles are by default moved into this area.

• All models: Added a new parental control function: lock schedule (see "Setup / Misc / Parental Control" menu). Allows locking media player access during specified time periods. During these time periods, media player access can only be temporarily unlocked by a parental code (locked again automatically when entering standby or after 10 minutes on inactivity without media playback).

• All models: Online subtitles: Improved handling of episodes of TV shows.

• All models: Online subtitles: Can be searched in 3 languages now: chooses subtitles language, choosen UI language, and English.

• All models: Online subtitles: Many other improvements and bugfixes.

• All models: Improved compatibility with SMB1/SMB2/SMB3 protocols when browsing and mounting SMB shares in specific environments.

• All models: Improved automatic configuration of available services and preinstalled applications based on country.

• All models: Improved handling of country setting in Location menu (both country codes and country names are supported now).

• ALl models: Improved video framerate detection in some cases.

• All models: Music playback: Information from CUE sheet now has bigger priority, than information from the audio file.

• All models: Bugfix: Music banner could be wrongly shown for a short time when starting video file playback.

• All models: Bugfix: When playing video files, photo files present in the same directory could be wrongly shown in Dune Control mobile app as covers for the played file.

• All models: TV plugins: PLAY button on TV plugin in Favorites menu now works the same as in Apps menu (can be used to quickly start TV playback).

• All models: TV playback: added support for HLS streams of type "Event" (available when using "engine:1" playback engine), including the possibility to pause and timeshift the playback.

• All models: Added correct handling of external storage devices formatted as Android storage. Previously such devices wronly appeared in Sources menu.

• All models: Bugfix: Text in Right-to-Left languages (such as Hebrew) was wrongly displayted in Dune Control mobile app.

• All models: Bugfix: Switching IPTV channels via P- did not work in some cases.

• All models: Bugfix: Adjusting subtitle time offset did not work in some cases.

• All models: Bugfix: Shortcuts to NFS folders in Favorites menu did not work in some cases.

• All models: Bugfix: When adding a shortcut to a movie to Favorites menu, movie poster could be lost in some cases.

• All models: A lot of other bugfixes and improvements when playing specific files and streams (various issues found during internal testing).

• Realtek models: SMB server: upgraded to a newer Samba version.

• Realtek models: SMB server: improved compatibility with newest Windows versions.

• Realtek models: SMB server: added new setting: SMB1 support enabled/disabled (by default, it is enabled; when enabled, SMB server supports all SMB versions: SMB1, SMB2, SMB3; when disabled, SMB server supports only SMB2 and SMB3).

• Realtek models: SMB server: added new settings: user name, password, password enabled/disabled (by default, it is disabled; enabling password may be helpful when accesing Dune SMB serfer from newest Windows versions, which prohibit password-less access by default).

• Realtek models: Added automatic firmware update for the new Dune Remote R3 Bluetooth remote (fixed the problem that this function, which was added in previous firmware versions, was not actually working.)

• Realtek models: Improved handling of external USB DAC when used together with USB microphone and in some other cases.

• Realtek models: Added support for user fonts for subtitles (like it was previously available on Sigma models: choose a .TTF file in file browser, press ENTER, and choose "for subtitles"). Removed wrong mentioning of this function from the menu of other models which do not support it.

• Realtek models: Improved compatibility with specific HTTP/HTTPS streams.

• Realtek models: Bugfix: Playback of TS files via HTTP (such as from a streamed torrent) did not work in some cases.

• Realtek models: Bugfix: Auto framerate and auto resolution could work wrongly for Android apps in some cases.

• Realtek models: Optimizations to improve BD Menu playback performance in specific cases. Not well tested, so disabled by default. Try to enable in case of problems.
    • For experimental needs, these optimizations may be manually enabled/disabled using the following DSF utility files (can only be used on the new firmware; effect is preserved till settings reset):
        • http://dune-hd.com/support/misc/dune_service_bdmenu_perf_mode1_enable.dsf
        • http://dune-hd.com/support/misc/dune_service_bdmenu_perf_mode1_disable.dsf

• RTD1619/RTD1619DR models: Optimizations to improve SMB (CIFS) client performance in specific cases. Not well tested, so disabled by default. Try to enable in case of problems.
    • For experimental needs, these optimizations may be manually enabled/disabled using the following DSF utility files (can only be used on the new firmware; effect is preserved till settings reset):
        • http://dune-hd.com/support/misc/dune_service_rtd1619_smb_perf_mode1_enable.dsf
        • http://dune-hd.com/support/misc/dune_service_rtd1619_smb_perf_mode1_disable.dsf

• RTD1619/RTD1619DR models: Optimizations to improve overall system performance; solves performance problems with playback of very high bitrate 4K DV content in specific cases (known to help, in particular, with playback from SMB shares and NTFS HDDs). Enabled by default.
    • For experimental needs, these optimizations may be manually enabled/disabled using the following DSF utility files (can only be used on the new firmware; effect is preserved till settings reset):
        • http://dune-hd.com/support/misc/dune_service_rtd1619_memory_perf_mode1_enable.dsf
        • http://dune-hd.com/support/misc/dune_service_rtd1619_memory_perf_mode1_disable.dsf

• RTD1619/RTD1619DR models: Optimizations to improve NFS client performance. Enabled by default.
    • For experimental needs, these optimizations may be manually enabled/disabled using the following DSF utility files (can only be used on the new firmware; effect is preserved till settings reset):
        • http://dune-hd.com/support/misc/dune_service_rtd1619_nfs_perf_mode1_enable.dsf
        • http://dune-hd.com/support/misc/dune_service_rtd1619_nfs_perf_mode1_disable.dsf

• Realtek and S905X3 models: Extended auto framerate setting with new option "prefer double framerate".
    • When it is used, 25-30p content is played in 50-60p modes; otherwise 25-30p content is played in 25-30p modes (if the required 25-30p modes are supported).
    • Note: it useful only when 4K video mode is used (25-30p modes are supported for 4K resolution on all platforms), and also on RTD1619/RTD1619DR models when 1080p video mode is used and 25p content is played (only RTD1619/RTD1619DR models support 1080p25 video mode).
    • On S905X3 models, this new feature is supported only for internal player; on Realtek models, it is supported both for internal player and for Android apps.

• RTD1619/RTD1619DR models: Added support for 1080p25 video mode.

• RTD1619/RTD1619DR models: Improved detection of 25p and 50i content for auto framearte.

• RTD1619/RTD1619DR models: The number of volume level steps increased to 32.

• RTD1619/RTD1619DR models: Improved subtitles display for some languages (arabic, thai, hebrew).

• RTD1619/RTD1619DR models: Added support for playback for specific MP4 files with huge number of tracks.

• RTD1619/RTD1619DR models: Improved compatibility with some Blu-ray images.

• RTD1619/RTD1619DR models: Optimized 3D depth effect when playing BD3D (it could be slightly wrong in some cases).

• RTD1619/RTD1619DR models: Added possibility to manually switch "left/rigth eye first" mode when playing BD3D in Menu mode (it was not working before).

• RTD1619/RTD1619DR models: Improved automatic detection of "left/right eye first" mode when playing BD3D in Lite mode.

• RTD1619/RTD1619DR models: Improvements in DVD-Video playback engine.

• RTD1619/RTD1619DR models: The setting "Playback / Control / UP/DOWN buttons" is extended with a new option "Fast forward/rewind". It allows using UP/DOWN buttons as FF/REW for file and BD Lite playback (DVD-Video: FF/REW were already available via UP/DOWN; BD Menu: FF/REW were already available via P+/P-; UP/DOWN are reserved for BD Menu navigation).

• RTD1619/RTD1619DR models: Bugfix: Volume control via HDMI CEC did not work properly in some cases.

• RTD1619/RTD1619DR/S905X3 models: Warning about Bluetooth remotes which require firmware update but have low batteries is now shown less frequently.

• RTD1619/RTD1619DR/S905X3 models: Bugfix: Google voice services did not update to a newer version.

• All models: PHP API: Improved HTTPS support (SSL libraries updated to a newer version).

• All models: Minor changes in the list of preinstalled applications.

• All models: Updated/improved UI translations for some languages.

Version "220317_0257_r20" (BETA version)
Download: dune_firmware_tv175h_220317_0257_r20.dff
Changes since 200929_0333_r15:
This firmware version is the same as the alpha firmware version 220317_0257_r20.

Includes a new version of the user interface (New GUI). More details: New GUI.

The new version of the user interface is used by default. The old version can be chosen in "Setup / Misc / Appearance" menu.

Includes a lot of other bugfixes and improvements. More details: history of alpha firmware versions.

Version "200929_0333_r15" (BETA version)
Download: dune_firmware_tv175h_200929_0333_r15.dff
Changes since 200929_0332_r15:
• This firmware is almost equivalent to the version 200929_0332_r15 and
  only adds the improved support for Bluetooth remotes (for some new
  batches of Pro 4K II, which are shipped with a new Bluetooth remote).

• Added support for automatic pairing of Dune HD Bluetooth remotes.

• Improved support for remotes with reduced set of buttons (w/o AUDIO,
  SUBTITLE, REW, FWD buttons) in Blu-ray menu playback.
    • The following buttons can now be used in INFO menu:
        • B: works as AUDIO (switch audio tracks).
        • C: works as SUBTITLE (switch subtitle tracks).
        • LEFT: works as REW (fast rewind).
        • RIGHT: works as FWD (fast forward).
    • NOTE: The following buttons are also supported, as before:
        • A (in INFO menu): works as ANGLE (toggle viewing angle) (when
          supported).
        • P+: works as NEXT (next chapter).
        • P-: works as PREV (previous chapter).
    • Minor other improvements.

Version "200929_0332_r15" (BETA version)
Download: dune_firmware_tv175h_200929_0332_r15.dff
Changes since 200910_2300_r15:
• NOTE: This firmware includes some internal changes, which make it
  impossible to rollback to old firmware versions. After this firmware
  version is installed, it is possible to rollback to the previous stable
  version 200920_0001_r15 (which is basically equivalent to the version
  200702_2251_r15), but it is impossible to install other old versions
  (older than 200920_0001_r15).

• New feature: The "default" flag for audio tracks and subtitle tracks in
  MKV files is now supported. When no track is matched by language (and
  there is no remembered previously chosen track), the default track is
  used.

• New feature: Pro 4K II model: Added support for decoding of multichannel
  SACD audio files which use DST compression (DFF and ISO) to multichannel
  PCM. Now, such files can be played with multichannel PCM output to HDMI.
  A new setting "Setup / Playback / Parameters / Preferred SACD area" can
  be used to choose, for images, which contain simultenously multichannel
  and stereo variants, which variant to use (default is Multichannel).
  (NOTE: not supported on older Realtek models, because CPU power of older
  models is not enough for stable playback.)

• Improvement: Realtek models: Added support for playback of very large
  (very long) audio files in various lossless formats (SACD DSF/DFF/ISO,
  FLAC, APE, WavPack) (for examples, 192/24 audio file longer than 70
  minutes could not be played before, because of internal 32-bit
  limitation).

• Improvement: Dune HD Pro 4K II model: auto framerate switching for
  Android applications: added support for previously unsupported Android
  applications.

• Improvement: Dune HD Pro 4K II model: auto framerate switching for
  Android applications: video mode is now correctly restored after exiting
  from Android application.

• Improvement: Dune HD Pro 4K II model: video playback in some Android
  applications is now better optimized and should work more smoothly.

• Bugfix: Entering/exiting standby did not work correctly in some cases.

• Bugfix: Realtek models: some HDMI CEC settings were not remembered after
  reboot.

• Minor changes in the list of preinstalled applications.

• Minor other fixes and improvements.

Version "200920_0002_r15" (the latest stable version)
Download: dune_firmware_tv175h_200920_0002_r15.dff
Changes since 200920_0001_r15:
• This firmware is almost equivalent to the version 200920_0001_r15 and
  only adds the improved support for Bluetooth remotes (for some new
  batches of Pro 4K II, which are shipped with a new Bluetooth remote).

• Added support for automatic pairing of Dune HD Bluetooth remotes.

Version "200920_0001_r15"
Download: dune_firmware_tv175h_200920_0001_r15.dff
Changes since 200702_2251_r15:
• This firmware is almost completely equivalent to the version
  200702_2251_r15.

• NOTE: This firmware includes some internal changes, which make it
  impossible to rollback to old firmware versions. After this firmware
  version is installed, it is impossible to install any firmware version
  older than the version 200920_0001_r15.

• Minor changes in the list of preinstalled applications.

Version "200910_2300_r15"
Download: N/A (is not available / is not recommended for this player model, the listed changes are included into next firmware versions)
Changes since 200710_1329_r15:
• New feature: Dune HD Pro 4K II model: added support for auto framerate
  switching and auto resolution switching for Android apps. Supported by
  most apps, including Netflix and Youtube (some other apps may not be
  supported yet). Correct support for all framerates, including 23.976 and
  24.0, including 24.0 in Netflix. Intellectual handling of automatic
  trailers in Netflix: when moving cursor between movies on the main
  Netflix screen (when a new trailers starts to play after each cursor
  movement), unneeded framerate switching is not performed.

• New feature: Dune HD Pro 4K II model: added support for 5.1 audio tracks
  in Netflix (including support for both DD+ and Atmos tracks in Netflix).
  So now 4K HDR + Atmos content is supported in Netflix.

• New feature: Dune HD Pro 4K II model: added the possibility to adjust
  audio/video synchronisation for files. Available via "A" RCU button
  during file playback (same as it was previously available on Sigma
  Designs models).

• New feature: remembering of the latest chosen audio track for a file.
  (Works similarly to remembering of the latest chosen subtitle track.)

• New feature: automatic selection of audio track by language when playing
  files. The language to use is determined by the setting "Setup / Playback
  / Language / Audio language". The default setting value is "Auto", which
  means to use "Interface language" setting. (Works similarly to automatic
  selection of subtitle track.)

• New feature: automatic selection of audio and subtitle track when playing
  files based on the previous user's choice when switching from one file to
  another in a playlist. Helpful e.g. when playing several episodes of a TV
  show.

• New feature: Added support for HEIC image format (photos saved by iPhone)
  in photo viewer.

• New feature: the built-in SMB server now provides access not only to
  connected USB/SATA drives, but also to the built-in flash memory (to the
  folder available as "Sources / Built-in memory"). This allows convenient
  copying of e.g. small video files (up to 25 GB on Dune HD Pro 4K II model
  having 32GB flash memory) or any other files into the built-in flash
  memory.

• New feature: Realtek models: now all Realtek models have a preinstalled
  icon for HiByMusic application in "Android apps" menu. (Previously only
  the models having built-in Hi-Fi audio outputs had it.) Helpful when the
  user wants not only to use HiByMusic application for file playback using
  "Play with ..." function, but also for organising a music collection.

• New feature: Realtek models: Added "Setup / Misc / Display / Brightness"
  setting which allows choosing the desired brightness of the front panel
  display, or switch off the display completely. Note: this setting takes
  effect only after the player starts.

• New feature: Added showing of an additional notification with the
  information that the RCU button "TOP MENU" can be used to return to the
  main menu of Dune HD UI after launching an alternative Android home
  application.

• Improvement: Improved support for launching SPMC/KODI as an external
  player, fixed KODI 18 compatibility problems.

• Improvement: Added showing of total bitrate information in the internal
  player also when playing HTTP files (for example, when playing links
  provided by TorrServe application).

• Improvement: Played files are now added to Recent menu not after 10
  seconds of playback, but only after 3 seconds.

• Bugfix: Auto resolution switching did not work in some cases when playing
  files (MKV 2K was wrongly played in 4K video mode).

• Bugfix: Dune HD Pro 4K II model: fixed problems with audio interruptions,
  absent audio, video stuttering sometimes happening when using Netflix.

• Bugfix: When switching between different online subtitles, built-in
  subtitles could disappear in the list of subtitles in some cases.

• Bugfix: Some MKV 3D MVC files were not detected as 3D.

• Bugfix: Wrong zoom mode (wrong aspect ratio) was used in some cases when
  playing MKV 3D SBS/TNB files.

• Bugfix: 3D video mode could be switched to 3D video mode when screensaver
  is activated.

• Bugfix: A problem could happen when seeking in some MKV 3D MVC file.

• Bugfix: 4K TV channels could not be correctly played in some cases.

• Bugfix: Player could hang when trying to play specific FLAC files.

• Bugfix: Video with wrong aspect ratio could be played in some cases when
  using some Android applications.

• Bugfix: HDMI CEC could not work properly when switching the player on.

• Bugfix: In SMB browser, it was impossible to enter an SMB server in some
  cases.

• Bugfix: Ethernet connection could be lost in some cases when enabling VPN
  connection.

• Bugfix: After formatting a storage, it was impossible to enter this
  storage in some cases.

• Bugfix: After formatting an SD card, wrong list of storages could be
  shown in GUI in some cases.

• Bugfix: Wrong information about SD card partitions could be shown in some
  cases.

• Bugfix: The number of storage partitions was not displayed correctly in
  "Information" dialog for a storage.

• Bugfix: UI could be blocked for a few seconds in some specific rare
  cases.

• PHP API: Added the new "stop_retrying" mode for plugin TV playback.

• PHP API: Added the use of "LaunchMediaUrlActionData::caption" in
  "launch_media_url://embedded_app" action.

• Minor changes in the list of preinstalled applications.

• Minor other fixes and improvements.

TODO: ChangeLog (or use common with tv175h?), publish in online update.

Version "200710_1329_r15"
Download: N/A (is not available / is not recommended for this player model, the listed changes are included into next firmware versions)
Changes since 200702_2252_r15:
• This is an experimental firmware version. In case of any problems, please
  roll back to a previous version.

• New feature: Added support for 4K HDR in Netflix.

• Improvement: Improved the performamance of video stopping and TV channel
  switching.

• Improvement: Improved write performance for NTFS filesystem.

• Improvement: Changed some system settings to optimize system stability
  and fix some low-level problems.

• Improvement: Changed some internal configuration to potentially improve
  support for some formats of multichannel audio in Android apps. (This is
  only preliminary and incomplete support, to be further improved.)

• Improvement: In "Android apps" menu, some apps are now shown even when
  they are not installed yet. Also changed the order of some apps.

• Improvement: In "Android TV" menu, "Dune HD" app is now available, which
  provides another way to return to Dune HD menu.

• Improvement: In "Android TV" menu, changed the default initial list of
  favorite apps: added "Dune HD" app, changed the order of some apps. This
  change is applied only on a clean box or after settings reset.

• Improvement: When "Android TV" menu is opened for the first time, a hint
  about the possibility to use TOP MENU to return to Dune HD menu is shown.

• Improvement: In the initial setup menu, when manual configuration mode is
  used, "auto resolution" setting is now switched off by default (same as
  in automatic mode).

• Improvement: Improved the default configuration of the TV menu for some
  world regions.

• Improvement: "Dune HD" main menu item is renamed to "Dune HD
  information".

• Bugfix: Framerate was wrongly detected for some MKV VP9 video files.

• Bugfix: When using full BD Menu, a crash could happen in some cases.

• Bugfix: It was impossible to control some versions of KODI APK via IR
  remote control.

• Bugfix: When playing DASH video streams using internal player (e.g. when
  using Kartina.TV application), some garbage could be shown as part of the
  video in some cases.

• Bugfix: There could be problems with detecting and showing storages in
  "Sources" menu, and with handling of HDD with multiple partitions, HDDs
  w/o partitions, non-formatted HDDs.

• Minor other fixes and improvements.

Version "200702_2252_r15"
Download: N/A (is not available / is not recommended for this player model, the listed changes are included into next firmware versions)
Changes since 200702_2251_r15:
• This is an experimental firmware version. In case of any problems, please
  roll back to a previous version.

• Various firmware components are replaced with more optimized versions,
  with various unneeded debugging possibilites removed.

• Bugfix: some Android applications which check and refuse to work on
  "rooted" systems could wrongly consider the system as "rooted". (The
  system is not "rooted" by default; if "rooted" system is needed, see
  "dune_service_android_su_install.dsf" at http://dune-hd.com/support/misc)

Version "200702_2251_r15"
Download: N/A (is not available / is not recommended for this player model, the listed changes are included into next firmware versions)
Changes since 200701_2346_r15:
• Bugfix: Exit from standby mode could hang after entering standby mode
  during playback.

• Bugfix: When outputting audio to Bluetooth, the audio interruptions took
  place and other problems could happen.

• Bugfix: When playing DASH video streams using internal player (e.g. when
  using Kartina.TV application), the player could hang on switching TV
  channels.

• Bugfix: When playing DASH video streams using internal player (e.g. when
  using Kartina.TV application), picture could have wrong aspect ratio.

• Removed the not needed and not supported setting "Analog A/V output" from
  the menu "Setup / Video / Advanced" (because analog A/V output is always
  enabled).

• Preinstalled Android aplications (YouTube, SmartYouTube, Netflix, IVI,
  Okko, Megogo) updated to the latest versions.

Version "200701_2346_r15"
Download: N/A (is not available / is not recommended for this player model, the listed changes are included into next firmware versions)
Changes since 200525_2048_r15:
The first version which was available via online update and which could be
really used.

Version "200525_2048_r15"
Download: N/A (it not available / is not recommended for this player model)
The first official version ever shipped with production players.