1. Download and install "u-center".

2. Connect the P-9 Race to the computer and power it on. Right-click on "This PC", select "Manage" - "Device Manager" - "Ports", and check the COM port number for the P-9 Race.

3. Click "Receiver" - "Connection", and select the COM port number for the P-9 Race.

4.
1) Click "View" - "Generation 9 Configuration View"
2) Click "Advanced Configuration".
3) Click "CFG-RATE" - "CFG-RATE-MEAS".
4) In the "Value" field, enter the time interval for the update rate. For example, for a 1Hz update rate, enter "1000"; for a 5Hz update rate, enter "200"; for a 10Hz update rate, enter "100" and so on. The default value is "40" corresponding to a 25Hz update rate.
5) Click "Set in RAM", "Set in BBR" and "Set in Flash" in sequence.
6) Click "Send config changes" to save the settings.