Alpha Firmware Versions

To check which firmware file you need, see "Setup / Info / Product ID", and download the file for this product ID.

To install firmware: choose the firmware file (.dff) in the file browser on your Dune HD media player, press ENTER.

Latest alpha firmware versions

New feature: Pro Vision 4K: Experimental support for full FEL decoding of Dolby Vision P7 FEL video is now added for this model too. Huge thanks to djnice77 for his outstanding work and help with the integration. Supports the same features as on 8K models, except for the split-screen demo (S905X4 limitation).
Improvement: 8K models: Various improvements and fixes in full FEL decoding. DV FEL plugin updated to 0.2.17. If you manually installed an older plugin version, please uninstall it and restore the built-in plugin ("Setup / Misc / Plugins").
Improvement: 8K models, Pro Vision 4K: Full FEL decoding is now disabled by default after a settings reset and when updating from firmware without this feature. This preserves the familiar default playback behavior and lets users decide when to enable this experimental feature. Use the setting "Setup / Video / Picture Quality / Full FEL decoding" to enable it.
Improvement: Pro Vision 4K, AV1 4K models: HDR10+ for AV1 videos is now supported.
Improvement: All models: The two new Netflix-like views in movie lists now show media tags for movies from My Collection.
Bugfix: Ultra 8K: Hi-Fi player: switching to the next file while paused could result in no sound from the built-in DAC.
Bugfix: All models: Incorrect text was shown instead of season and episode number in some cases.
Bugfix: All models: Recent menu incorrectly showed a movie poster and description for files with movie matching disabled.
Bugfix: All models: Starting My Collection indexing could behave incorrectly in some cases with Internet connection problems.
Bugfix: All models: Movie images could fail to load in some cases.
New feature: DMC: Write access to SMB network folders is now supported (only SMB2/SMB3): create, rename and delete folders, copy and paste files, save sort settings, save online subtitles, sync.
New feature: DMC: Premier 4K Pro: Added display brightness setting for front panel display, with separate settings for "player is on" and "video output is off".
Improvement: DMC: Faster My Collection indexing and faster opening of folders on SMB network folders.
Bugfix: DMC: SMB network folders: access after a lost connection is restored at once, reading a file after a lost connection no longer hangs, and a file left open on the server after a network loss no longer blocks renaming or deleting it.
Bugfix: DMC: Kodi used as an external player could cause a crash when a playlist on a network folder was played.
Other minor fixes and internal changes.

New feature: 8K models: Added experimental support for full FEL decoding of Dolby Vision P7 FEL video. Now, when playing P7 FEL video, the player not only uses the Dolby Vision RPU metadata from the FEL layer (as before), but also decodes and uses the residual data from that layer. Huge thanks to djnice77 for his outstanding work and help with the integration. This new feature can be enabled/disabled using the new setting "Setup / Video / Picture Quality / Full FEL decoding" (enabled by default). Split-screen demo during playback can be toggled by "SELECT" button. Besides, FEL/MEL information is now shown in the playback INFO panel.
New feature: Duo 8K, Duo Cinema 8K, Ultra 8K: Addded new Dolby Vision Tuning settings ("Setup / Video / Dolby Vision Tuning" menu): LLDV-HDR mode for HDR displays, DV target peak brightness, DV target black level and target colorspace. The settings are also available in the POPUP menu during video playback.
New feature: 8K models, Ultra 4K, Ultra 4K Vision, Max 4K Vision: Added "DSD output mode" setting (Native, PCM). Native DSD output is supported only for Hi-Fi player and only for output to the built-in DAC or to an external DAC via USB or I2S-E.
New feature: AOSP11 models, DMC: Added a built-in FTP server as an additional way to access connected storage devices and internal storage. AOSP11 models use the standard FTP port 21, while DMC uses port 10021. The server is enabled by default with anonymous access. A username and password can be configured in "Setup / Applications / FTP server" menu.
New feature: AOSP11 models: Added settings for center and LFE channel gains when multichannel audio (5.1, 6.1, 7.1) is downmixed to stereo. They apply both to the internal player and to other Android apps.
New feature: AOSP11 models: Added the new setting "LED brightness (video output is off)".
New feature: All models: Favorite Movies in Favorites are now collected in the special "Favorite Movies" subfolder. "Add to Favorites" and "Remove from Favorites" are available in the POPUP menu and by the BLUE button in more places, including the top menu rows and My Collection screens. The list can be reordered and edited using POPUP / Edit List, also in the rows view; CLEAR removes a movie after a confirmation. In the old GUI, "Favorite" is the first item in the list of genres in Movies and My Collection.
New feature: All models: Playback variants on the movie screen. POPUP / Choose play variants (also in Setup / Applications / Movies) sets which variants are offered on PLAY and in which order. My Collection has its own list ("Playback variants (My Collection)"), where "search on YouTube" and similar items are off by default. The new setting "Offer other sources in My Collection" is available there too.
New feature: All models: Movie list views which previously had only matrix view now have two Netflix-like views, switched by the "A" button.
New feature: All models: POPUP / Refresh movies in My Collection folders reloads the information of all movies there.
New feature: All models: WebP images are supported in the photo viewer, as folder icons and in other places where images are shown.
Improvement: AOSP11 models: Faster GUI reaction on playback start and stop, and faster return to the main GUI after playback of 4K Dolby Vision content in some cases.
Improvement: AOSP11 models: The digital audio output mode PCM now also applies to other Android apps, so Dolby Digital and Dolby Digital Plus from apps are decoded to PCM for TVs and receivers that do not support them.
Improvement: AOSP11 models with internal HDD: Automatic fan speed now also depends on the temperature of the internal HDD.
Improvement: 8K models: Faster playback start of Dolby Vision content on Dolby Vision TVs.
Improvement: 8K models: DST128 and DST256 encoded DSD files are supported again.
Improvement: 8K models: More robust sound output to USB audio devices.
Improvement: 8K models: Android apps now get access to the external storages automatically.
Improvement: Duo 8K, Duo Cinema 8K, Ultra 8K: The front panel display shows the S/PDIF icon when S/PDIF audio output is enabled.
Improvement: All models with front panel icons: "Show additional icons" is now enabled by default (also after a firmware update).
Improvement: All models: Many operations are much faster with a large My Collection: indexing, favorites, the Netflix-like view, editing movie and file associations, updates of Recent and watch information. Scanning of folders with many video files is faster, for example 4 seconds instead of 40 for a folder with about 10,000 video files on SMB.
Improvement: All models: My Collection indexing is more robust: changes made while a folder is not available are kept for the next scan, quick scan handles renamed and incomplete folders correctly, and folders with names longer than 255 bytes are skipped and listed in the folder setup. "Clear Indexing Result" and similar operations no longer stop too early on large collections.
Improvement: All models: Watched marks. "Set watched mark" and "Clear watched mark" are available in all movie lists, in My Collection screens, in the episode list of a season and in the file browser for any video file. The marks of a movie, its episodes and its files are kept in sync, so a mark set in the file browser is shown on the movie and in Recent, and the other way around. A series takes the mark of its latest episode and continues from the next unwatched one. The "fully watched" rule is now respected everywhere.
Improvement: All models: The PLAY button on posters and on the movie screen starts playback directly (the first episode if a series is fully watched). In Recent, ENTER and PLAY act on the episode the series has reached, and opening a Recent item selects its file in the movies view.
Improvement: All models: Movie list views are no longer limited to 512 items.
Improvement: All models: The file browser now shows the files added by indexing without leaving the folder.
Improvement: All models: Renaming a favorite to the name of another one silently deleted the other one. Now Overwrite / Rename / Cancel is asked.
Improvement: All models: In TV plugins, EPG GUI now shows additional rating info and the producers when available.
Improvement: All models: Smoother info panel in the Netflix-like view, especially in the file browser, now without unexpected fade animations.
Improvement: All models: The search screen of the New GUI has the BLUE button and POPUP menu actions as in similar screens.
Improvement: All models: In the file chooser dialog a folder can be created using the BLUE button.
Improvement: All models: "Show in File Browser" for a movie with several files skips the intermediate screen when all files are in one folder and focuses the right file.
Improvement: All models: Faster startup: the black screen after power on is shorter. On the first start after boot or standby the main screen waits up to 3 seconds for the network instead of showing the "no Internet" views at once.
Improvement: All models: Windows Media Video 9 (WMV3) files are recognized as VC-1. VC-1 advanced profile videos play correctly with hardware decoding on more models.
Improvement: All models: SMB network folders: only the root folder of a share is mounted, which avoids various rare problems with several folders of one share.
Bugfix: Duo 8K, Duo Cinema 8K, Ultra 8K: Changing some video and audio settings could cause screen flickering and HDMI reinitialization.
Bugfix: Dual system models: The Android TV system was not reachable over the network while a VPN was active, and DNS did not work there.
Bugfix: Dual system models: USB network connection to the Android TV system could fail to start in some cases.
Bugfix: 8K models: Hi-Fi player: pops and clicks on playback start, stop, pause and on DSD/PCM transitions coild happen in some cases.
Bugfix: 8K models: Hi-Fi player: playback could skip when the volume was changed.
Bugfix: 8K models: Hi-Fi player: the player could crash when switching to the next file.
Bugfix: 8K models: Hi-Fi player: the music visualization could freeze for short moments.
Bugfix: 8K models: The output sample rate shown in the music playback OSD (including DSD and synchronous mode) could be wrong or missing.
Bugfix: AOSP11 models: The GUI could hang or crash when the top menu and other remote buttons were pressed after returning from another app.
Bugfix: All models: Some season posters and episode images could be missing after My Collection indexing.
Bugfix: All models: My Collection: the indexer could crash after a collection folder was removed or renamed, or freeze on NFS folders.
Bugfix: All models: Confirming an episode file of a series showed an application error.
Bugfix: All models: User movie chosen for several files at once was not kept.
Bugfix: All models: The poster and fanart in the file browser were not updated after Edit Movie Info.
Bugfix: All models: A wrong poster could be shown after adding a My Collection movie to Favorites.
Bugfix: All models: Favorites: removing a movie or person from Favorites on its page did not work.
Bugfix: All models: Photos of persons could be missing in some cases.
Bugfix: All models: Renamed Favorite Movies item could lose its name.
Bugfix: All models: Sync: removed Recent items could come back.
Bugfix: All models: Sync: an unwatched mark did not always reach other players or was overridden by an older watched one,
Bugfix: All models: Sync: a change made during a write to the shared folder could be lost or delayed until the next sync period,
Bugfix: All models: Sync: playback could wait for a shared folder that did not answer.
Bugfix: All models: Music app: artist and album fanart did not load in some cases; some tracks were not found or showed an application error, other fixes.
Bugfix: All models: A photo slideshow could hang on a photo that failed to load, especially on SMB.
Bugfix: All models: A long list of countries on the plugin movie screen was drawn over the poster.
Bugfix: All models: Several rare shell crashes were fixed, for example after installing a custom skin and opening MOVIES, or with a favorite pointing to a network folder.
Bugfix: All models: The screensaver could stay disabled after another app was launched during playback, for example when the media center was used as an external player.
Bugfix: All models: After choosing the TV application from the top menu, the GUI could be left in a wrong state.
Bugfix: All models: A repeat mode message could stay on screen until the end of playback.
Bugfix: All models: The pause state could be shown wrongly after switching audio tracks during pause.
Bugfix: All models: DVD playback: some discs played the wrong audio track chosen in the disc menu,
Bugfix: All models: DVD playback: autoframerate could choose a wrong mode for some incorrectly authored discs.
Bugfix: All models: DVD playback: the container could be shown as unknown in the INFO.
Bugfix: All models: Online firmware update could freeze while downloading the firmware.
Bugfix: All models: The HDD sleep function could cause USB audio glitches about every 120 seconds.
Bugfix: Neo 4K, Neo 4K T2, Neo 4K T2 Plus, Sky 4K Plus models: Web sites using new certificates could not be opened.
Other small improvements and fixes.
Many internal changes.