0 SMOOTH 4 U s e r G u i d e Contents ■Product Introduction (1) ■Get to Know Smooth 4 (2) ■Battery and Charging Instructions (3) ■Installation (4) ■The Use of Stabilizer (6) ■The Use of APP (13) ■Calibration and Firmware Upgrade (15) ■Basic Specifications (17) ■Discl...
Firmware updates are also delivered directly through the application, and you simply leave your phone close to the unit while the update is progressing, which takes around 10 minutes to complete. While the app offers plenty of secondary functions, like video upload, tutorials, and many community...