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 rec​ordings 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 encodi​ng 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

updatemystuff.com never hosts firmware files — always download from the official source.

Get it from Teradek

Watch the Prism Mobile for updates

Create a free account and get an email the moment Teradek publishes new firmware.

Create account & watch

Other versions for this product

See the full firmware history for the Prism Mobile