It has been confirmed by SIM manufacturer that the new Nano-SIM used in iPhone 5 just cannot be cut from conventional Micro-SIM. But yet people refuse to accept the fact and try to DIY the nano-SIM from the original micro-SIM. A video shows a guy could really make it by using the ruler, scissors and sanding paper. However, in this video no evident shows that the “nano-SIM” is workable but just shaped into the exact dimension of nano-SIM. Our advise from Ricky Chew Dot Com: Please do not try to cut your micro-SIM to nano-SIM, simply wait for official way to convert your micro-SIM.