Mobile phone three SIM card you do not know the cutting card "secret"

The development of the SIM card physical size is gradually thin, gradually reduce the size of a process, the first mobile phone cards are 2ff,2003 International standard 3FF, the current many terminals use this form of cards, 4FF in the 2011 International Standard meeting, the 2012 included in international standards

Small series recently started a new phone, is hooves, suddenly found that also need to cut cards, although they have a shears, but the small part of this clumsy, or do not take their own when the small white mouse, decisive to find mobile mm to solve ~

But MM said, shearing card may be cut, plan to give a new card, small part of the heart satisfied a stuffy, this change phone when the original SIM card directly cut, when can not?

The small part of this consulting the China Mobile Research Institute of Business Research Professionals, I would like to know the answer it? Table urgency, in order to solve this problem, the small partners or to accompany small to learn the SIM card knowledge it ~

"SIM card History"

The development of the SIM card physical size is gradually thin, gradually reduce the size of a process, the first mobile phone cards are 2ff,2003 International standard 3FF, the current many terminals use this form of cards, 4FF in 2011, the International Standard Conference, 2012 included in international standards.

Do not look at the three size of the SIM card "long" is not the same, but it has no difference in customer encryption, the function is exactly the same, so that the small partners can also rest assured!

OK, the introduction is complete, careful little partners have noticed a problem, the size of the SIM card is gradually declining, that will be because of this, to cut the card has brought some difficulties? The 11 international standard meeting was presented in 2012 as a incorporation of international standards.

"The clipping mystery" revealed "

In fact, 2FF can be cut to 3FF, but 2FF and 3FF cut to 4FF difficult, because the 4FF card than the other two cards to thin some, and the shape of the 4FF card is very small, the accuracy of the cutting card requirements are high, there is a certain technical difficulty.

Think about cutting cards so troublesome, small partners in the heart reluctantly, is there a more convenient way of wood to change the card casually? Hey, the little friends are really asking, the current China Mobile "fit card" 3FF double cut and 4FF double Chekanovskogo has come into being! Let's take a look at "principle" first!

Small partners to see is not often excited about it, if you change it, the small partners will never worry about cutting cards.

Mobile phone three SIM card you do not know the cutting card "secret"