Teradek Prism Rack v2 (877) firmware
Teradek · Prism Rack v2 (877) · Video
Latest firmware for the Teradek Prism Rack v2 (877) is v2.25.20261021 (October 21, 2026).
Changelog
Prism Rack v2 (877) firmware changelog
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v2.25.20260526v2.25.20260924Added Scene Change Detection option to encoders; fixed network reconnection and modem connectivity issues. -
v2.22first tracked
Firmware history
-
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Teradek Prism Firmware Version 2.25.20261021
New Features
- None
Changes and Improvements
- Updated Teradek Priority Data multi-carrier support -- Verizon was not working
- Decoder MPEG-TS and SRT stats are now always displayed in the same order
Bug Fixes
- Decoder status could indicate decoding when idle
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Added Scene Change Detection option to encoders; fixed network reconnection and modem connectivity issues. — summary by updatemystuff.com
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Teradek Prism Firmware Version 2.25.20260924
New Features
- Added 'Scene Change Detection' option to encoder settings - when enabled, encoder can dynamically insert i frames, this was always enabled in previous firmware
Changes and
Improvements
- None
Bug Fixes
- Core control/status connection did not always reconnect after network interruptions
- Node II modems could take a long time to connect, or would never connect in some cases
-
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Teradek Prism Firmware Version 2.25.20260526
New Features
- Added controls for starting/stopping all Core and Cloud linked streams from the device
Changes and
Improvements
- Added support for RTMP App name in ingest URLs
- Keep ordering consistent when exporting user settings
- Added license information to exported settings
Bug Fixes
- Teradek Bond stream over UDP did not work with Prism Rack cards if one Ethernet was left disconnected
- Fixed issues with Multi-track audio - track assignments were incorrect and audio could be distorted
- Devices could not connect to Core on some networks
- Network priority labels were incorrect for Prism rack devices
- Hyperion decoder could not ingest SRT streams
- SRT and MPEG-TS streams did not work as outputs for Hyperion decoder
- RTMP and RTSP streams into Hyperion decoder didn't recover after restart
- Fixed RTSP stream metadata
- Some output stream modes did not work with IP stream as an input
- Modems did not connect when used with Teradek Data set to Carrier Lock mode
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Teradek Prism Firmware Version 2.25
New Features
- Added REST Settings API, includes the following:
- Full stream configuration, status, and control
- Encoder configuration
- Recording control
- Endpoint for users to request high/adjustable quality snapshot images
- SCTE message insertion
- OAuth authentication
- Documentation at teradekdev.com
- Added additional interface priority and bandwidth limit options for UDP protocol Teradek Cloud/Bonded streaming
- Added failover/backup ingest stream option for decoders
- Added device configuration import/export functionality
- Allow users to configure chunks/chunk duration to HLS and DASH in WebUi
- Allow users to configure web UI session timeout or disable it
- Added Battery status notifications
- Added Settings Sync API to push configuration directly to LAN devices
- Added start/stop controls to WHIP on encoder
- Added option to upgrade device using a firmware image URL
- Added Low Power Mode Status/Indicator to front panel for Jetpack
- Added stream controls for all stream modes that support them to Jetpack monitor
Changes and
Improvements
- Removed license requirement for IP stream as an input
- All Modems can now be upgraded at the same time
- Added caching for encoder/return video web UI snapshot so there's no loading screen when switching statuses
- Auto packet size option for MPEG-TS is now aware of Interface MTU settings, adjusts accordingly
- Improve decoder bitrate graph accuracy, reduced 'spikiness'
- WebUI displays if discovered wifi networks are 5GHz or 2.4GHz
- Changed Return Video default setting to "Disabled"
- Added per audio/video track MPEG-TS PID settings
- Added DASH stream cache control headers to webserver
Bug Fixes
- Fixed some intermittent Core API connection stability issues
- 5.1 and 7.1 audio channel modes were not initialized correctly
- Fixed network routing initialization to better support multi-VLAN environments
- Some system utilities would restart periodically when connected to a network with no internet connection
- RTMP reconnect did not work if RTMP server endpoint was restarted
- Fixed file duration display for segmented recordings
- SDI output signal could flicker intermittently when used with some monitors/video switchers
- Mac-generated PNGs could not be uploaded to Prism for use with pattern generator
- Some SIMs would not connect automatically without manually adding APN configuration
- Start/stop broadcast option was not shown on the front panel
- WHEP stream web player did not play audio
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Teradek Prism Firmware Version 2.24.20260106
New Features
- None
Changes and
Improvements
- Updated expired self-signed SSL certificate
Bug Fixes
- Teradek Data SIMs could not connect to some European carriers in Auto mode
-
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Teradek Prism Firmware Version 2.24
New Features
- Added USB audio input support
- Added support for IP streams as an input source for Prism encoders (Beta, requires license)
- Added 'Start all' streams button for Prism with Multi-stream license
- Added real time file upload support for Core, S3 file sync
- Added selection between Sequential and Parallel file uploads for Frame.io
Changes and
Improvements
- Added read permissions for all groups/users to recorded files
- Improved Prism web UI mobile compatibility
- Allow users to disable web UI access on Wired 2 interface
- Band selection for custom modem configuration is saved when switching between Auto & Custom
- Improved network uplink detection when connectivity is poor
- Added support for throttling of status information between devices and Core
- Added support for hostname registration via DHCP
- Changed license-activated Decoder Configuration menu label to Return Video
- Added enable/disable toggle for return video decoder
- Changed DPI (SCTE 104/35), Splice Type label to Network Event
- Enter key now works to apply EAP network settings
- System processes are restarted if a firmware upgrade is interrupted or fails before reboot
Bug Fixes
- Unplugging ethernet cable could disrupt other active network connections
- Disabling return video decoder on encoder could corrupt encoding and spike bitrate
- Presets export function was not working, exported files could not be imported
- Mac-generated PNGs could not be uploaded to use with Pattern Generator or OSD
- RTMPS authentication did not work with some streaming servers
- Facebook broadcasts would remain live after clicking Stop Broadcast
- Wowza Cloud server would stop when Prism stopped streaming to it
- HEVC MP4s did not work in some players - Changed HEVC Codec ID header to hvc1 instead of hev1
- SD card could not be accessed if formatting was done too soon before recordings were started
- Upload entries were duplicated on Frame.io for files recorded while offline
- Recording utility could restart when uploading multiple files simultaneously
- In progress recording uploads could not be manually stopped
- Corrupt recordings could prevent media information from loading
- Disabling the Core file sync toggle would stop recordings
- File browser did not display files mounted via NFS correctly, files could not be downloaded
- NFS drives sometimes failed to unmount
- Codec restarted when attempting to record to offline NFS drive
- Recorded files had no audio track when Audio codec was set to AC3
- 877 Analog audio volume slider did not work
- Diagnostics report did not contain 'defaults' file
- PAP SIM authentication did not work for some carriers
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Teradek Prism Firmware Version 2.23.20250722
2.23.20250722 Changes
- Improved C2C file upload reliability over slow internet connections
- Fixed issue that caused Core connections to fail for some accounts
- Encoder did not start correctly when multi-track audio was enabled
New Features
- Added failover test pattern generator for Next Gen codec mode
- Added OpenVPN Server on Decoder for DHCP bridging to remote encoders
- Enabled HEVC Support for manual RTMP streaming, YouTube
- Added SCTE 104/35 support to encoder and decoder (Additional license required)
- Added ability to manually upload files to Core and Frame.io
- Added customizable uplink checking
- Added setting to device to force VUER and TTV apps to display watermarks
- Added interface selection to web UI for MPEG-TS decoder config
- Users can now select which audio track to use in an RTMP stream
- Added audio only options for Secondary RTMP Streams
- Added button to reset streaming stats on the decoder for SRT / RTP
- Added Ethernet Link Speed selection
- Users can to select Core Share sources via decoder Front panel
Changes and
Improvements
- Removed Standard encoder mode, device settings will be migrated when upgrading from 2.22 or earlier
- Restored decoder network interface selection
- Added URLs for SDP file downloads for RTP Push stream mode
- Added device host name/serial number to login page
- Added Core Comms to Prism Mobile Vertical Menu
- Front panel record indicator now blinks when recording
- Greatly improved file upload robustness when connectivity is lost or slow
- Added user notification if Frame.io authorization fails
- Allow user to configure camera type (for fan control) without recording enabled
- Interval recording suffix number now increases beyond the configured max files number
- Node Band Selection options are all enabled by default
- Added reference guide link to Prism web UI
- Disabled device history feature
- SRT/MPEG-TS stream stability improvements
Bug Fixes
- Core file sync and Frame.io C2C uploads could fail if the network uplink changed while uploads were in process
- Decoder SDI metadata was not initialized on startup
- 877 Cards did not detect HDMI backplate/source
- RTMP auto-reconnect did not work if the server terminated the connection
- Manually Adding Wi-Fi networks failed due to an invalid password message
- Connecting to WPA Enterprise networks from web UI when switching directly from AP mode didn't work
- Overlay editor did not show video preview as background
- Overlay editor did not display previously configured overlays
- Right status column showed Audio Track 0 for all Audio Tracks
- Web UI was causing increased browser memory usage
- Web Interface reloaded unnecessarily after connecting to OpenVPN server
- Cloud accounts were displayed as connected even if devices could not connect
- Decoder audio mapping changes didn't take effect until the codec restarted
- Decoder overlays were not shown in some configurations
- Ethernet was not initialized correctly when connecting to non-gigabit ethernet equipment
- Modem Diagnostic Reports were not being created correctly
- Hyperion Ingest could not be configured/selected
- Prism Flex decoder serial number and product info was not shown
-
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Teradek Prism Firmware Version 2.23
New Features
- Added failover test pattern generator for Next Gen codec mode
- Added OpenVPN Server on Decoder for DHCP bridging to remote encoders
- Enabled HEVC Support for manual RTMP streaming, YouTube
- Added SCTE 104/35 support to encoder and decoder (Additional license required)
- Added ability to manually upload files to Core and Frame.io
- Added customizable uplink checking
- Added setting to device to force VUER and TTV apps to display watermarks
- Added interface selection to web UI for MPEG-TS decoder config
- Users can now select which audio track to use in an RTMP stream
- Added audio only options for Secondary RTMP Streams
- Added button to reset streaming stats on the decoder for SRT / RTP
- Added Ethernet Link Speed selection
- Users can to select Core Share sources via decoder Front panel
Changes and
Improvements
- Removed Standard encoder mode, device settings will be migrated when upgrading from 2.22 or earlier
- Restored decoder network interface selection
- Added URLs for SDP file downloads for RTP Push stream mode
- Added device host name/serial number to login page
- Added Core Comms to Prism Mobile Vertical Menu
- Front panel record indicator now blinks when recording
- Greatly improved file upload robustness when connectivity is lost or slow
- Added user notification if Frame.io authorization fails
- Allow user to configure camera type (for fan control) without recording enabled
- Interval recording suffix number now increases beyond the configured max files number
- Node Band Selection options are all enabled by default
- Added reference guide link to Prism web UI
- Disabled device history feature
- SRT/MPEG-TS stream stability improvements
Bug Fixes
- Core file sync and Frame.io C2C uploads could fail if the network uplink changed while uploads were in process
- Decoder SDI metadata was not initialized on startup
- 877 Cards did not detect HDMI backplate/source
- RTMP auto-reconnect did not work if the server terminated the connection
- Manually Adding Wi-Fi networks failed due to an invalid password message
- Connecting to WPA Enterprise networks from web UI when switching directly from AP mode didn't work
- Overlay editor did not show video preview as background
- Overlay editor did not display previously configured overlays
- Right status column showed Audio Track 0 for all Audio Tracks
- Web UI was causing increased browser memory usage
- Web Interface reloaded unnecessarily after connecting to OpenVPN server
- Cloud accounts were displayed as connected even if devices could not connect
- Decoder audio mapping changes didn't take effect until the codec restarted
- Decoder overlays were not shown in some configurations
- Ethernet was not initialized correctly when connecting to non-gigabit ethernet equipment
- Modem Diagnostic Reports were not being created correctly
- Hyperion Ingest could not be configured/selected
- Prism Flex decoder serial number and product info was not shown
-
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Teradek Prism Firmware Version 2.22.20241202
New Features
- None
Changes and
Improvements
- Added selectable streaming interface to MPEG-TS, SRT ingest
- Improved video codec recovery after interruptions
- Improved Wi-Fi connection stability, throughput
Bug Fixes
- Some video/codec status fixes
- Audio settings sometimes failed to apply
New Features - 2.22
- Added 16 channel embedded audio support for SDI input
- Added H.264 interlaced streaming support
- Added B Frame support to decoders
- Timecode can now be embedded into decoder SDI output
- Added closed captions Support on Next Gen decoder
- Added WebRTC support to encoder and decoder
- Added auto join call toggle for Core Comms
- Users can now set Stream names, visible in web menu navigation
- Added MPEG 1-LAYER II audio option - BETA
- Added AC3 audio codec support to encoders and decoders
- Added full device configuration to front panel for devices with 5-way joysticks
- Added WPA Enterprise WiFi Support
- Added support for multiple DNS servers in DHCP and static IP modes
- Added Hotspot functionality to second Ethernet interface
- Added OpenVPN Client to Prism encoders/decoders
- OpenVPN network configuration can be used to provide VPN access to hotspot-connected devices
- Added File sync for Teradek TV
- Added support for syncing device diagnostics with Core for quicker support
- Added auto-start support for RTMP streaming in Next Gen encoder mode
Changes and Improvements - 2.22
- Updated web UI design and reorganized configuration pages to improve usability
- Added a default web UI password and disabled auto-login
- See https://guide.teradek.com/a/1530201-power-and-connect#access-the-web-ui for details
- Changed default codec mode to Next Gen
- Changed default deinterlacer mode to Progressive for Next Gen encoder mode
- Improved video encoding quality in Next Gen encoder mode
- Improved decoder compatibility with streams from 3rd party encoders
- Strong passwords are required when changing web UI password
- Strong passwords are required for stream auth passwords
- Improved multi-track audio UX for encoders and decoders
- Stream presets can now be created directly from the streaming page
- Core file sync setting is preserved when logging out and back into Core
- USB headset can now be used with Prism Mobile Backpack w/6 modems
- Added Encryption and password protection to diagnostics reports
- Added "defaults" item to diagnostic report showing all changed values from factory defaults
- Rearranged System Setings page and split into two sub-pages - Settings & Maintenance
- Added rate limiting for failed login attempts
- Added inactive/idle session timeout to web UI
- Added support for CSRF tokens
- Added access control to diagnostic file downloads
- Updated web server version
- Improved closed caption stream compatibility with third party platforms
- Removed obsolete publish_to_groups permission from Facebook API
- Added stream stats to extra streams 2-5 when multiple stream license is installed
- Removed rackmount Prism password syncing
- Removed Dash HLS from decoder
- Removed Accounts page
- Removed custom bitrate Selection from audio
- HTTPS must be enabled before uploading certificates
- Removed audio only, video only record file types
- Added option to disable vertical status display
- Prism Mobile: show Modem C (USB) & D (Lemo) in OLED when connected
- Changed encryption key size format from bytes to bits
Bug Fixes - 2.22
- Next Gen Codec mode
- Fixed issues with recorded file timebase
- Prism rack mount analog audio in/out did not work
- Clicking the mute button removed audio settings from the web UI
- Fixed long term stream stability issues
- Alexa 35 Recordings used previous clip name
- Sony record triggers did not start recording
- Interlaced AVC streams were detected as 1080p by 3rd party decoders
- Decoder would restart occasionally when when ingesting interlaced stream
- Fixed decoder file playback compatibility issues
- Decoder could not decode UDP-TS video if another stream is present on the same port
- Decoder didn't work with interlaced H.264 streams from Cube 6xx/Slice 6xx products
- Analog audio selection was not applied after switching from embedded to analog
- WiFi could disconnect/reconnect occasionally on some networks
- TRT encryption key size was always 16 bytes, ignored 24/32 byte configuration
- SRT decoder attempted to reconnect every 30ms when encyption was set incorrectly
- If track 1 is disabled when Enabling Multitrack Audio, other tracks were not transmitted
- Fixed handling for broadcast start when no uplink is present - users can now retry
- Decoder would restart unnecessarily when left idle
- Core Comms join call operation sometimes failed on initial connection
- Continuous recording uploads did not work with FAT32 formatted media
- When recordings are split at 4GB only the last segmant was uploaded
- Headphone loopback was muted when audio input is set to analog
- Web browser memory usage increased over time with Web UI open
- Event history sometimes failed to populate
- Fixed recorded file playback in web UI
- Twitch authorization failed
- Node 5G-SW: For Verizon SIM, Sierra Wireless was using the default APN instead of custom APN
- eSIM modem configuration "Auto" did not work
-
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Teradek Prism Firmware Version 2.22.20241114RC
New Features
- Implement 16 channel audio
- Expose 16 channel audio
- Add Hotspot functionality to second Ethernet interface
- Add Hotspot UI/UX to second Ethernet interface
- Allow users to rename streams
- Add Closed Captions Support on Next Gen Decoder
- Add B Frame support to decoders
- AX210 wifi bringup in Prism flex decoder
Changes &
Improvements
- Wrapped up web UI
improvements
- WebUI File Playback
improvements
- Core file sync setting is now preserved when logging out and back into Core
- Only allow to link to one Teradek Cloud Service at a time
- Rearrange System Setings page and split into two sub-pages - Settings & Maintenance
- Next gen decoder multitrack audio
improvements
- Lockheed Martin Security Scan issues
- NextGen - Change default deinterlacer mode to Progressive
- Set default diagnostic sync to enabled . Do not disable if there is no active Core login
- Move Frame rate out of advanced in Video settings
- Hide audio volume controls by default
- Audio Bitrate default adjustments - remove custom bitrate selection from audio
- Label - Change input to input gain
- Remove Audio only and Video only file types for recording
Bug Fixes
- Analog Audio selection is not applied after switching from Embedded to Analog
- TRT Encryption key size is always 16 bytes, ignores 24/32 byte configuration
- Prism 877 Cannot Upload and Configure 3D Luts
- Remove Video Input Option for 877
- Changing Encoder Settings, interrupts/restarts Decoder Output
- Headphone Loopback is muted when audio input is set to analog
- USB Headset does not work with Prism Mobile Backpack w/6 Modems
- Inconsistent settings for "Embedded Mute" on Front Panel
- Some ranges for audio settings are incorrect on front panel
- Front Panel initially loads values from incorrect Protocol/Connection Type
- WHEP Tdmedia memory leak
- Snapshot Preview alternates between encoder and decoder snapshot
- core-api-client: Investigate Issue with Topic Handling in Multitrack Audio Functionality
- Large recorded files/videos take longer to load & start playback under Recorded Files Video Player
- Node 5G-SW: For Verizon SIM, Sierra Wireless is using the default APN instead of custom APN
- Remove Codec Configuration from left hand navigation shortcuts on Prism Mobile
- Prism webUI: Modem Advanced click collapse whole Modem section
- Next-Gen Encoder Mode causes transcoder to report 75% frame rate
- Decoder Configuration Settings are not showing
- Next-gen: Front panel Video menu doesn't allow to change video input or resolution, just resolution control type
-
Release notes & download
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Teradek Prism Firmware Version 2.22
New Features
- Added 16 channel embedded audio support for SDI input
- Added H.264 interlaced streaming support
- Added B Frame support to decoders
- Timecode can now be embedded into decoder SDI output
- Added closed captions Support on Next Gen decoder
- Added WebRTC support to encoder and decoder
- Added auto join call toggle for Core Comms
- Users can now set Stream names, visible in web menu navigation
- Added MPEG 1-LAYER II audio option - BETA
- Added AC3 audio codec support to encoders and decoders
- Added full device configuration to front panel for devices with 5-way joysticks
- Added WPA Enterprise WiFi Support
- Added support for multiple DNS servers in DHCP and static IP modes
- Added Hotspot functionality to second Ethernet interface
- Added OpenVPN Client to Prism encoders/decoders
- OpenVPN network configuration can be used to provide VPN access to hotspot-connected devices
- Added File sync for Teradek TV
- Added support for syncing device diagnostics with Core for quicker support
- Added auto-start support for RTMP streaming in Next Gen encoder mode
Changes and
Improvements
- Updated web UI design and reorganized configuration pages to improve usability
- Added a default web UI password and disabled auto-login
- See https://guide.teradek.com/a/1530201-power-and-connect#access-the-web-ui for details
- Changed default codec mode to Next Gen
- Changed default deinterlacer mode to Progressive for Next Gen encoder mode
- Improved video encoding quality in Next Gen encoder mode
- Improved decoder compatibility with streams from 3rd party encoders
- Strong passwords are required when changing web UI password
- Strong passwords are required for stream auth passwords
- Improved multi-track audio UX for encoders and decoders
- Stream presets can now be created directly from the streaming page
- Core file sync setting is preserved when logging out and back into Core
- USB headset can now be used with Prism Mobile Backpack w/6 modems
- Added Encryption and password protection to diagnostics reports
- Added "defaults" item to diagnostic report showing all changed values from factory defaults
- Rearranged System Setings page and split into two sub-pages - Settings & Maintenance
- Added rate limiting for failed login attempts
- Added inactive/idle session timeout to web UI
- Added support for CSRF tokens
- Added access control to diagnostic file downloads
- Updated web server version
- Improved closed caption stream compatibility with third party platforms
- Removed obsolete publish_to_groups permission from Facebook API
- Added stream stats to extra streams 2-5 when multiple stream license is installed
- Removed rackmount Prism password syncing
- Removed Dash HLS from decoder
- Removed Accounts page
- Removed custom bitrate Selection from audio
- HTTPS must be enabled before uploading certificates
- Removed audio only, video only record file types
- Added option to disable vertical status display
- Prism Mobile: show Modem C (USB) & D (Lemo) in OLED when connected
- Changed encryption key size format from bytes to bits
Bug Fixes
- Next Gen Codec mode
- Fixed issues with recorded file timebase
- Prism rack mount analog audio in/out did not work
- Clicking the mute button removed audio settings from the web UI
- Fixed long term stream stability issues
- Alexa 35 Recordings used previous clip name
- Sony record triggers did not start recording
- Interlaced AVC streams were detected as 1080p by 3rd party decoders
- Decoder would restart occasionally when when ingesting interlaced stream
- Fixed decoder file playback compatibility issues
- Decoder could not decode UDP-TS video if another stream is present on the same port
- Decoder didn't work with interlaced H.264 streams from Cube 6xx/Slice 6xx products
- Analog audio selection was not applied after switching from embedded to analog
- WiFi could disconnect/reconnect occasionally on some networks
- TRT encryption key size was always 16 bytes, ignored 24/32 byte configuration
- SRT decoder attempted to reconnect every 30ms when encyption was set incorrectly
- If track 1 is disabled when Enabling Multitrack Audio, other tracks were not transmitted
- Fixed handling for broadcast start when no uplink is present - users can now retry
- Decoder would restart unnecessarily when left idle
- Core Comms join call operation sometimes failed on initial connection
- Continuous recording uploads did not work with FAT32 formatted media
- When recordings are split at 4GB only the last segmant was uploaded
- Headphone loopback was muted when audio input is set to analog
- Web browser memory usage increased over time with Web UI open
- Event history sometimes failed to populate
- Fixed recorded file playback in web UI
- Twitch authorization failed
- Node 5G-SW: For Verizon SIM, Sierra Wireless was using the default APN instead of custom APN
- eSIM modem configuration "Auto" did not work
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