This is a Bluetooth low energy (BLE) application for GlobalSat TR-520 configuration. By synchronizing with your TR-520, you can check the FW/APP versions and current settings. Also, you can adjust device settings to fulfill different user scenarios. With this application and TR-520, we believe you will have a better experience.
Functions:
Basic Information
FW version / APP version
Cellular settings
Device settings
Security setting
Firmware upgrade
Support iOS 11 or above.