Move all the data from its current resting place on your computer to the fresh card. 7 - Full Conversion. If one phone or device has a regular SIM card slot and the other has a micro SIM slot, you can still transfer the data easily without ever having to connect the original SIM card to a computer.The memory chip of the standard SIM is quite small, with a lot of extra space around the edges.hat you think of as a standard-sized SIM card is actually a mini-SIM. After it came the micro SIM card, and Apple iPhones incorporate nano SIM cards. 3 - Switching Brains. Before you start messing with data transfers, you need to understand exactly what a transfer does.