How to change a Mode 2 transmitter to a Mode 1 transmitter?

Summary

The following explains how to change a Mode 2 RealFlight Controller to Mode 1.

Resolution

Please read all instructions carefully before you begin this conversion. Horizon Hobby will not accept responsibility for incidental damage to your flight controller or personal computer. Please contact Product Support prior to performing this conversion if you have any questions about this procedure.

Tools Needed

• Medium phillips-head screwdriver
• Hemostats (preferred), or needle-nose pliers

Instructions

1. Make sure your RealFlight controller is completely disconnected from your computer. Failure to do so could result in permanent damage to your controller and/or your computer.
2. Remove the four screws from the rear of the controller, remove the rear half of the case, and lay the controller face-down on your workspace.
3. Remove the silver metal ratchet lever and screw from the gimbal on the right-hand side. This is the throttle ratchet. Physically relocate it to the gimbal on the left-hand side. Rotate the metal ratchet 180 degrees, so the screw hole is now nearest the switch on the top left side of the controller, and the ratchet end is now pointing downward and resting on the ribbed surface of the gimbal. Line up the lever's hole over the plastic mounting stud on the gimbal, insert the screw and tighten to a snug fit (making sure the lever maintains proper alignment over the ribbed area of the gimbal). DO NOT OVER TIGHTEN, as the plastic gimbal may easily become stripped.
4. On the left-hand gimbal, notice there is an arm-and-spring type lever mounted vertically along the inner-right side of the gimbal, the spring attached at the lower end to a plastic mounting stud which is held in place with a small brass screw. This arm / spring / stud assembly must now be moved to the right-hand gimbal. Using pliers, gently pry the head of the spring upwards off of the plastic mounting stud. Simply pull the mounting stud with screw out of the gimbal and set aside. Now remove the spring and arm from the gimbal (this may require slight maneuvering of the parts to get them out from behind the main body of the gimbal). NOTE: The arm is held in place by its two pivot lugs near the top of the gimbal, which rest inside mounting flanges on the main body of the gimbal. Simply lift the arm near the lugs. It should easily slide out of the flanges and be removed completely.
5. Looking at the gimbal on the right-hand side, on the inner-left side near the bottom, notice similar arm mounting flanges as seen on the other gimbal. Take the arm just removed from the other gimbal, insert the lever end into the space located just above these mounting flanges, and rotate the arm upward until the arm's lugs can rotate downward and rest into the flanges. Notice the opposite end of the lever can now be seen near the top end of the gimbal. Take the spring which was removed from the other gimbal and, using hemostats, grab one end of the spring (lock the hemostats for best results). Now, holding the spring with the hemostats, insert the spring down into the gimbal so the loop on the opposite end hooks onto the end of the arm. Once hooked, take the mounting stud and screw (which was removed from the other gimbal) and insert it into the mounting flange on the top end of the right gimbal (do not use screwdriver), making sure the small arm is pointing towards the bottom end of the controller. Once the mounting stud is in in place, use the hemostat to pull the end of the spring upwards and hook it onto the small arm of the mounting flange, and release the hemostat. If any question arises to the assembly of the arm / spring / stud mechanism, refer to the arm already in place on the bottom of either gimbal, as they are assembled in the same manner.
6. Both gimbals are now in the Mode 1 configuration. No alteration of any wires is necessary. Simply enter the RealFlight program and configure the software to operate in the Mode 1 setting.