I am upgrading from iPhone 3gs to lg nexus 4, which has a micro sim. how do I transfer data from sim to micro sim
You need to first copy the data that you want to iTunes. Then, sync this data from there. Alternatively, you can contact your service provider to help you transfer the data more efficiently.
Just cut ur sim card. Its not hard I did it when I went from my 3gs to my iphone 4 and i used nail clippers to cut it lol
Have your provider do it for you.