Move whatsapp account without SIM
what you are trying to do is very possible but your methods will never work. firstly you gotta know that there are two different com.whatsapp folders. The one you were just talking about is so useless anyone any device can access, you need the whole directory from . to copy this you need root permissions right, and to copy them in a new device you need root as well, so that you are able to put them in the root dir.