Newbie needing some help on FW updates. I updated my Inspire 1 AC and master RC no problem. Now wondering how to update the slave RC. When I insert the bin file into the RC via usb, no sound, red light stays on. I read online that your have to change the slave back to a master RC and then update. I searched online but I can't anything for this specific task. Any help you can offer re how to update the slave RC would be greatly appreciated. Since I'm a newbie, looking for specific step by step instructions.  I just installed a new USB module from DJI since others appear to suggest the usb connection on the module can get unreliable and cause lack to connection.  This is a used system I bought a few years back and have never used the slave controller. The AC and master RC have performed well.

Thanks for any help.
Jim

Hi. Thank you for reaching DJI Forum. You don't need to change the secondary RC into Master RC. You just have to turn off the aircraft and the primary RC and you're good to go.