SharkRF openSPOT4 firmware v33

SharkRF · Released Sep 7, 2026 · First seen Sep 7, 2026

Source: sharkrf.com

v33 is not the latest firmware for the SharkRF openSPOT4: the current version is v93 (October 8, 2026). Go to v93

In short — summary by updatemystuff.com

SharkRF Link app for web access and transceiver use; fixed C4FM audio; bulk profile export.

  • SharkRF Link app for device web interface and transceiver use
  • Fixed C4FM croaking sound from missing or invalid network packets
  • Added bulk configuration profile export

Written from SharkRF's release notes, which are printed in full below.

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What's in this update

Added support for the new SharkRF Link app.

This app lets you easily open the web interface of your SharkRF devices, and also use the app as a transceiver.

See this page for more information.

Added power off if no charger connected ​delay Added support for setting source callsign suffix for D-STAR cross mode calls and when using the SharkRF Link app Added support for disabling talkgroup list usage Updated the BrandMeister Manager to the latest BrandMeister API auth change Added support for exporting all config profiles at once Homebrew/MMDVM connector in C4FM or D-STAR cross mode: if a Special command/cross mode private call DTMF code (default *) is sent to the openSPOT4 without an ID, then a quick group call to ID 4000 will be sent.

If the cross mode group call DTMF code (default #) is sent without an ID appended to the command character, then the destination ID of the last incoming call from the network will be set as the “Route cross mode calls to ID” setting.

For example, if the “Route cross mode calls to ID” setting is currently TG123, and a call is received to TG91, and you enter DTMF code # to the openSPOT4, then the “Route cross mode calls to ​ID” setting will be changed to TG91.

This can be used to quickly answer an incoming call to a talkgroup Fixed occasions when active profile overwrote the new profile after profile change Fixed croaking sound when there are invalid seqnum errors/missing packets in the incoming C4FM network stream Fixed profile #10 voice announcement Various fixes and improvements

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Other versions for this product

See the full firmware history for the openSPOT4