Roadnet Telematics LMU 3640 Release Notes
The 2021.R1 firmware release for the Roadnet Telematics 3640 device has several enhancements.
- Added support for higher ignition voltage detection in 24v vehicles
- Added a battery management feature to help extend the battery's lifecycle
- Added a low voltage check and deep sleep mode to help preserve vehicle battery charge
- Added automatic DTC message after the ignition has been on for 5 minutes
- Added support for Cat M with supported devices
- Added current consumption limit during extreme temperatures to prevent internal battery damage
- Changed sleeping device heartbeat wakeup interval to 8 hours
- Changed engine crank detection logic to better detect ignition on
- Fixed panic button and PTO input mapping
- Fixed an issue that caused the scheduled event message to sporadically fire outside of the schedule
- Fixed accumulator versioning across all script variants
- Fixed edge case cellular issues with upcoming AT&T 3G sunset
- Fixed excessive VBUS queries when the device is installed/wakes up while the engine is off
- Fixed excessive CAN bus errors that could lead to the device disabling the vehicle for safety reasons