Guilin Feiyu Electronic Technology Co., Ltd.Guilin Feiyu Electronic Technology Co., Ltd http://www.feiyu-tech.com service@feiyu-tech.com- 1 -FY G4S 3-Axis Handheld GimbalFirmware Upgrade ManualAttention : Please do not operate the function button when in upgrading. The firmware upgrade software only supports the Windowsoperation system provisionally. Please operation step by step strictly and make sure click theOPEN button to open the com port before the USB Mini terminalof the USB cable connect to the gimbal. If you want to get the current version of the gimbal, please executestep 1~6.Please refer to the following connection diagram, connect the USB cable to theUSB connecter before upgrading.1. Download the USB driver from FY-TECH official websitehttp://www.feyu-tech.com and install. Then download the dedicated firmwareupgrade software and the firmware for gimbal.2. After successful install the USB driver, please refer to the aboveconnection diagram, connect the USB cable to the USB connector then insert