Thanks for your response. I have tried to deploy another sample chaincode (sacc) on the same channel (mychannel) and the same First Network. It works fine.
What you need to do is to follow the steps from Step 5 with your own chaincode. For test only you can almost follow all instruction. Just make sure you (a) specify the right directory of your chaincode, (b) when instantiate chaincode you specified the right arguments required in your chaincode. Don’t forget to use another chaincode name.
I am documenting what I have done and will later publish and article per your request.