NEW patch release RC (RM330) control with firmware higher than 01.03.0100 
RC firmware supported: 01.03.0400 > 01.03.1000
If the above video isn’t self explanatory enough, I google translated and tweaked a set of Spanish instructions.
Instructions.pdf (2.8 MB)
Note: unlike other hacks, this one requires you to delete a 900mb file from the RC, copy a hacked 900mb file from the SD card back to the RC … all within a 25 second window, or you have to start all over again 
EDIT: the instructions are incomplete, please use the instructions further below.