Flight distance : 2152127
I solved my own problem. After searching on this forum and on PhantomPilots forum I learned from DJI reps that if you get the message "DISCONNECTED" on your connected device (in my case, an IPad Air 2 and an iPad Mini 3), that either the USB cable is bad OR the USB port on the RC has gone bad. Note: this is NOT the same as the "AIRCRAFT DISCONNECTED" message, which just means the RC is connected but the Inspire 1 has not yet been powered ON. The message "DISCONNECTED" on the iPad at the top of the CAMERA view screen, the inability to see or set MASTER or SLAVE status in RC settings, and the inability to see the RC firmware version in the ABOUT section of the DJI GO app all indicate that there is not a working connection between the iPad and the RC. Again, this means either the USB-lightning cable is bad or the USB port on the RC is not working.|
First, I tried two other lightning cables that worked with my MASTER controller and its attached iPad and neither fixed the DISCONNECTED problem trying to link my Slave RC to its attached iPad. So much for the cheap, inexpensive fix.
Fortunately, I had a spare unboxed Phantom 3 HDMI Module that I recently purchased to install on my new P4, but I hadn't gotten around to installing it yet.
So, I checked on several forums and two DJI reps and several Inspire owners all confirmed that - YES - the Phantom 3 HDMI Module (nominal $100 part) works not only on the new Phantom 4, but it can also be used to replace a faulty USB/HDMI port on the Inspire 1 RCs.
So, first I replaced just the bare HDMI module circuit board and tried reusing the old white plastic USB/HDMI module housing (which, it turns out, also has a circuit board in it in addition to a mini HDMI connector). This, did NOT fix the problem. So, I then ALSO replaced the white plastic USB/HDMI module cover (and internal circuit board) with the new one from the kit and, voila, that FIXED THE PROBLEM! Thus, I did have a failed HDMI/USB circuit board on my Inspire 1 Slave RC. That is surprising since this slave RC has seen less than 1 hour of total use to date! But, I'm pleased I was able to fix the DISCONNECTED problem by replacing the HDMI/USB module without needing to send the RC in to DJI for repair.
I threw out the OLD white module cover that I removed from my Slave RC, because I know it, at least, is bad. I kept the old HDMI/USB circuit card that I removed from the Slave RC as a potential spare (although it may also be bad).
The iPad connected to my Slave RC could now see the Slave RC and the DJI GO app indicated that the RC needed a firmware update. The firmware update downloaded and the install completed successfully.
I then power cycled the Slave RC and in the DJI GO app, under RC settings, I set the RC to SLAVE, assigned a name, and searched for the MASTER. It found it within 5 seconds, entered the MASTER password, and live video from the Inspire now appeared on my Slave RC as well as the Master RC. YEAH!!!!
Other things I learned from reading lots of posts and reviewing instructional videos:
- You can link only one RC (the MASTER) to the Inspire 1; you do NOT link the Slave to the Inspire 1. If you link a second RC to the Inspire 1, the link to the first MASTER RC will be lost.
- You can RESET the Slave RC (or the MASTER RC) by pressing and holding down three buttons (C1, C2 and the photo button on right rear next to Play button) with the RC ON and while pressing and holding down these three buttons turn the RC OFF, continue holding the three buttons and then turn the RC back ON. RC will beep and the RC light will be RED.