To activate DJI RS 4 follow the steps below. 

1. Press and hold the power button to power on DJI RS 4.2. Enable Bluetooth on your mobile device.3. Launch the DJI Ronin app and register or log in with your DJI account. Select DJI RS 4 on the device list, enter the default password: 12345678, and follow the on-screen instructions to activate DJI RS 4.*4. DJI RS 4 will enter sleep mode after successful activation. Press the power button once to exit sleep mode before use.

*During activation, make sure your mobile device is connected to the internet.