The 1st step is to remove the back cover from the Skyartec transmitter. Remove the 9 screws from the back of the transmitter as well as the rubber sides.
Step 2: Remove the CC2500 module
Using a soldering iron with solder wick or a solder-sucker remove all solder connections to the CC2500 module. Removing enough solder to be able to remove the module will likely be difficult without wick or a sucker.