I have step by step instructions on my site. Goto.... https://bananapups.com/planting/
This is not generic info. This is exactly how I do mine personally! The main thing is warmth! You need a heat mat or some form of heat! Also the most common way people kill them is overwatering! So water once every 2 weeks or so max until you get growth! Remember the corm is not using water if it isn’t actively growing! Good luck.