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    Yabby3-4G Release Notes

    Written by Matthew Clark-Massera

    Updated at September 11th, 2025

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      • Yabby3 Cellular
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      1.17/2.17
      • Add parameter to optionally disable PCB debug interface
      1.16//2.16
      • Support for async stats reset to reset the battery status flags  
      1.15/2.15
      • Allows support for hardware revision 4
      1.14
      • Allow updates to MFW 1.3.4
      • Enabled multi-cell tower scan - requires Modem Firmware Update version 1.3.4
      1.12
      • Connection timeout change
      1.11
      • Parameter introduced to allow GPS fix on device heartbeat to be disabled.
      • Support for Modem Firmware Update to 1.3.3
      • Added support for stats reset via async message
      1.10 

      (Big update!)

      • SDK and Modem Library Updates
      • We can now reset the modem core separately from the application core to recover from modem faults. This allows for faster/better recovery when the modem freezes
      • Numerous fixes and improvements to networking sockets.
      • Others
      • Allow updates to MFW 1.3.2 and support MFW 1.3.2 flash backup changes 
      • Added GPS TTFF vs accuracy prioritization
      • Fixed incorrect trip start time issue for GPS based trip tracking
      • Fixed modem restart/recovery procedure after a SIM boot failure
      1.9
      • Modem freeze exponential backoff
      1.8
      • Once off in trip upload
      1.6
      • Support for HW rev2
      1.5
      • High G + Tip can be used simultaneously
      • GNSS Improvements
      1.4
      • Modem SDK Update
      1.3
      • First Production Release
      release yabby3 firmware update

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