english: 
ZYX S 3 AXIS GYRO 4.01 Software Installation
ZYX firmware reset to default instruction
1. Using USB link to connect ZYX gyro with computer configuration software, and select
the correct COM port on the configuration software. (Please note no need to click
"connect" button during upgrade.)
2. Using ZYX configuration software to open ZYX firmware upgrade file.
3. Keep computer, USB link, and ZYX gyro connecting. (Note: ZYX gyro doesn't need to
connect to any electric equipment.) Press "SET" button (supply power through CH 4 to
ZYX)until the red light start to flash.
4. After power on, the red light keeps flashing, and press "START UPGRADE" button to
enter upgrade mode.Gyro will restart automatically once succeed.
5. Please make sure your upgrade file is applicable to your gyro, otherwise, gyro will
be totally damaged. No need to reset gyro after upgrade.
