Teradek Prism Mobile
firmware v2.21
Teradek · Released Aug 16, 2024 · First seen Jul 11, 2026
v2.21 is not the latest firmware for the Teradek Prism Mobile: the current version is v2.25.20261021 (October 21, 2026). Go to v2.25.20261021
What's in this update
Teradek Prism Firmware Version 2.21
New Features
- WiFi Hotspot is now available -- Wi-Fi can be used to share device's Internet connectivity
- Added option to enable sidecar metadata file with recordings in Standard codec mode
- Added "AWS S3" Cloud Service for recording file upload sync
- Next Gen Codec mde
- Network interface can be manually selected for push streaming modes
- Added configurable 5.1/7.1 audio encoding modes (HDMI/SMPTE/Film)
- Added timecode option for recordings
- Added loop recording option
- Added multi-track audio support for encoder and decoder
- Added WebRTC (WHEP and WHIP) stream mode
- Added Dolby.io WebRTC support
- Added FenixRTS WebRTC support
- Added recording and playback support to decoders
- Added DASH and HLS streaming support to decoders
- Added date and timecode OSD options to decoder
- Added RTP option to MPEG-TS stream mode
- Decoders now support interlaced H.264 streams from some 3rd party encoders
Changes and
Improvements
- Fan now turns off while recording in camera-triggered mode
- License entry field now allows right-click to paste
- Added support for multiple network interfaces connecting to the same subnet
- Remote app access can now be disabled (See System Settings)
- Removed warning about interrupting streams when configuring overlays
- Facebook Groups streaming is no longer available
- Various security updates/improvements
- Ethernet static IP can be configured via front panel on devices with directional joystick
- Next Gen Codec mode
- Improved decoder stability
- Reduced decoder pixelation/artifacts when network connectivity is poor
- URLs are now generated for all 'listener' type stream modes (RTSP, HLS, etc.)
- Recording filename wildcards are now supported
- Added bonding statuses to web UI
- Improved interlaced stream compatibility with 3rd party decoders
Bug Fixes
- Next Gen Codec mode
- Encoder would sometimes encode green picture after restart
- Decoder sometimes output small group of frames repeatedly
- Encoder overlay disappeared if video source was disconnected and reconnected
- Encoder overlay was not scaled correctly for some encoder resolutions
- Prism rack mount decoder analog output was muted
- Next Gen stream settings were not reset with a factory reset
- Front panel record status did not work
- Embedded audio levels were lower in Next gen vs. standard mode
- Encoder could restart unnecessarily when video is disconnected/reconnected
- Failover generator didn't start if encoder was booted with no video and resolution/bitrate were set to Auto
- Prism Encoder does not start encoding video if source is connected after bootup and resolution/bitrate were set to Auto
- Deinterlacer could cause poor video quality
- Fixed Interlaced HEVC encoding to improve video quality
- Hyperion decoder did not recover if the inbound stream was restarted
- Switching between saved Wi-Fi networks did not always work correctly
- Wi-Fi connection dialog did not always disappear after connecting to a network
- Wi-Fi AP advertisement was publishing incorrect security mode
- Front panel interface could freeze if recording was enabled with no media selected
- Fixed audio stream drops when Audio Bitrate is configured at or above 512kbps
- Audio Bars on WebUI were not updated based on Audio Channel Selection
- Recorded file browser created file downloads with other clips' names
- 0 in wildcard of RED clipnames was saved as open bracket [
- Stopping a recording from a camera while recording is "Waiting" would trigger another recording
- Decoder did not output video if the source was 1080i59 with 4:2:2 chroma subsampling
- Core firmware check would display "Checking" until device's local web UI was loaded
- Name server and domain were sometimes not configured when connecting to Wi-Fi
- License-enabled settings were not updating correctly across different firmware versions, or if a modified license was installed
- Adding licenses to Prism Flex MK II does not work
- Custom modem APNs were not being saved correctly
- Add account button for stream presets was displayed even after configuring the account
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