Test report: successfully added a 3-button key card to a Renault Megane III year 2009 using FVDI2 full abrites commander.
Original key card:
New key to be programmed
Step 1: Read Pin Code
Open FVDI software, Select Renault Software->V5.2
Choose Key Learning function-> model Megane III X95 2009+
Press Start in menu to read key information
Then Read PIN Code
This is a Megane III, put the key card in ignition lock without starting engine
Read Pin Code success
Step 2: Learn key with FVDI Renault
Press Learn function
Enter number of keys to be programmed: 2
Press OK to continue
Insert key 1 into ignition lock and switch ignition to ON position
Then insert key 1 and turn ignition to ON position
Key learning in process
Press OK to save key learning result.
Turn ignition OFF and then ON
Key learning success
Test both keys. Both keys can start car.