The sticky mentioned above was removed for some unknown reason. I sent a PM to the moderator to find out why but got no response. This is what was posted a few months back:
Problem Solved: Let me Explain. I received my new RC yesterday and proceeded to follow the instructions on setting it up that are in this forum in many places. I ended up with a totally screwed up tilt mechanism just like it has been described in this post. I then proceeded to pull the pieces together that others say they had success with. This is what I did and now everything works perfectly. Even the gimbal tilt speed works as hoped. That is, the more you rotate it the faster the tilt happens. So you can now not only control the tilt from the RC but you can control the speed at which it tilts. This is great **** and worth the $100 for the new RC. Anyway, here is a recap:
1. Uninstall the current version of the RC Assistant and then re-install it from the DJI website. I don't know why, but this is key to getting it to work. My guess is that DJI made some additional changes to the 1.1 version without telling anyone. That said, it seems like a critical step.
2. Bind the new RC to the Phantom. Follow the steps in the Phantom Manual version 1.6. It’s simple and I think different from what others have displayed on YouTube.
3. Turn on the RC and plug it into the PC. Open up the recently installed RC Assistant and do the calibration on the sticks as noted in the Assistant but DO NOT press FINISH yet. Now the next step is critical. Even though the RC Assistant says not to do the calibration on the X1 (the Tilt Control Wheel), you have to do it. Select the X1 wheel and rotate it several times in both directions then let it come to rest in the neutral position. Now press Finish.
4. Disconnect the RC from the PC and turn off the RC Assistant.
5. Turn on the Phantom, and then connect to PC. Start up the Phantom Assistant. It should be the latest version 3.6.
6. Make sure you select the correct RC option. In our case it should be the "Upgrade" version.
7. Repeat the calibration process for the left/right sticks and press Finish.
8. Then select the Calibration START button under the X1 control, rotate the tilt wheel several times in both directions then let it come to rest in the neutral position. Then press Finish.
9. Power down the Phantom, shutdown the Assistant, disconnect the PC from the Phantom.
10. Restart the Phantom and it should be golden.
You need to follow every step, even if it looks stupid.