SharkRF openSPOT4
firmware v75
SharkRF · Released Sep 7, 2026 · First seen Sep 7, 2026
Source:
sharkrf.com
v75 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
Added battery life preservation option, fixed APRS device ID, and web interface improvements.
- New 'Prolong battery life' setting limits charging to ~80% for continuously powered devices
- Updated APRS device ID to official assignment (APOSB4)
- Fixed Fill with GeoIP button on location settings
Written from SharkRF's release notes, which are printed in full below.
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What's in this update
Added “Prolong battery life” option to Miscellaneous settings.
The battery will only be charged up to ~80% if this setting is enabled.
Enable this if you use the device plugged into a USB power source 24/7.
Changed APRS device ID to the assigned one (APOSB4) Fixed the “Fill with GeoIP” button at the Location settings on the web interface Minor fixes and enhancements
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