Custom processing specifications 12.3 * 8.8 * 0.65MM (customizable) (mm) Applications handset testing Material PVC Operating temperature -35-70 (℃) daily output of two hundred thousand Origin Shenzhen Shiyan I. Introduction Please note: This card is NANO phone hit 10086 test phone call using what is 3FF SIM card, 4FF SIM card before the introduction 3FF card, 4FF card, first understand what 2FF card. 2FF card is the 2nd Form Factor SIM card for short, is the physical form of the traditional SIM card is now widely used, the length of 2.5 cm wide and 1.5 cm. Card-based SIM card from PVC or ABS plastic material, above the contact surface of card base SIM card inlaid metal foil, on which there are six or eight pins. SIM card contacts Here is the chip, connected by gold wire and pins, but this SIM card in the manufacture of good appearance can not see. 2FF cards in standard card becomes Plug-In. Third form factor SIM card 3FF short, the discussion of international standards in the card in 2006, made even smaller than ordinary Plug-In Card SIM card. 2FF card is to be changed to 1.5 cm long, 1.2 cm wide change, which is currently used in the Mini-UICC card iphone4. Apple's iphone in order to improve integration, reduce the volume of SIM card, use this card, it is incompatible with other phones. Because the iphone is strong enough, operators, handset manufacturers have capitulated, but released 2FF cards and 3FF card. 4FF fourth form factor SIM card is short. In the card ISO SCP 3 months of this year conference, Apple in the proposed project do standardized 4FF card is a smaller SIM card standard than 3FF card for the next generation iPad. This proposal was not adopted, because the operators, terminal manufacturers and many other uses and benefits of this standard did not reach a consensus. Apple with great strength and influence, in July this year, meeting the criteria, so that this standard project success current technical standards are being developed. Progress seen from the current standards, 4FF should be at least 25% smaller than the Mini-UICC area, this card includes all the standard features of traditional SIM card. Second, the description of the use of 1. We produce activation card into the iphone; 2.iPhone boot, data cable connected to the computer; 3. Computer to open iTunes (PC must be connected through the network, that is, access to the Internet); 4. Wait iPhone to automatically connect to the server automatically activated via iTunes; 5. If another case, check the computer networks, shut down iTunes, reopened activated again, guaranteed success.