How to cut the card of Apple 4 iphone 4?

To use the iPhone 4, the existing SIM card needs to be cut open. But if we only use iPhone 4, it doesn't matter if we cut the card, but in the case that more of our machine friends may use several mobile phones, it will be extremely troublesome for other mobile phones to use SIM cards after cutting the card.

IPhone 4 card cutting principle

From a technical point of view, there is no essential difference between Micro SIM card and Mini SIM card. The only difference is the surface area, which is also meaningless plastic surface area. Therefore, the Micro SIM card is not a technological innovation, but more like an unconventional means. If it weren't for Apple's huge appeal in the industry and the iconic iPad 3G (including the current iPhone 4), I'm afraid the Micro SIM card wouldn't be the object of attention now.

Comparison diagram of Micro SIM card and Mini SIM card

Precautions for card cutting: The key to card cutting is never to cut the logic circuit in the center of SIM card.

We must make it clear that the metal contact is not the functional essence of the Mini-SIM card, but an auxiliary connection contact. As long as the card cutting does not affect the internal logic circuit, it will not have any substantial impact on the function. In the case of size conflict, as long as the top and center metal contacts and the symmetry of the whole SIM module are given priority (to prevent the contacts from being misaligned with the SIM card slot), the metal contacts at the bottom can be reasonably removed.

Tools/raw materials 1. The fastest and cheapest tool: scissors.

Cut the ordinary SIM with scissors to make the Micro SIM2 of iPhone4 and iPad. Professional card cutter for cutting my Sim card abroad

Cutting caliper

Screenshot of scissors calipers that can be used to cut cards.

Screenshot of clamping groove of clamping caliper can be used.

The above three tools can be seen and used for card cutting at present. More often, as domestic users, we suggest cutting cards with scissors, but we must pay attention to the size of cutting cards, the steps/methods of metal contacts, and the normal size of Micro SIM cards.

Comparison between Unicom Mini SIM Card (Part 2) and Ordinary SIM Card (Part 1)

IPhone 4 card cutting tutorial

The production of card cutting is quite simple, mainly because of the proportion of card cutting. Too big or too small will cause some trouble.

Card cutting steps:

1, making a sticker with the size of 12mm wide and 15mm high;

2. After making the sticker, stick the sticker on the front of the SIM card accurately (that is, the metal contact side of the SIM card). As shown in the above figure, the dotted line in the middle should be accurately aligned with the solid line on the SIM card;

3. After sticking the sticker, cut the black line on the sticker with scissors. When cutting, you can cut it a little bigger. If it is not suitable, you can use scissors or fine gauze to polish and adjust it. Don't cut the SIM card too small, because the cutting action is too big. After cutting, remove the sticker;

4, the entire card cutting process is completed, just put it in the iPhone 4.

Micro SIM card converter ensures that one card can be used for multiple purposes.

After cutting the card, our normal SIM card becomes a Micro SIM card. In addition, many people use two or more mobile phones and only use one mobile or Unicom card. It is obviously inappropriate to put Micro SIM in other mobile phones at this time. At this time, the help of Micro SIM converter is needed. At present, some merchants quote around 9 yuan, which is very cheap.

Screenshot of Micro SIM card converter

As shown in the above figure, after cutting the card, put the Micro SIM card into the card holder and put it back into any original mobile phone to use normally. Micro SIM card converter is a two-way adapter, which can convert a standard SIM card into a standard Micro SIM card or restore a Micro SIM card into an ordinary SIM card. In this way, SIM cards can be used on different devices. Sometimes you need to use iPad 3G or iPhone 4 with Micro SIM, just take the small card out of the card holder, and sometimes you need to use SIM card on other devices and put it on the card holder.

Precautions The above is the principle, tools, tutorial and converter usage tutorial of full card cutting. When you actually cut the card, it will be much easier to operate. At the same time, I also expect some machine friends who are still troubled by the problem of card cutting to buy iPad or iPhone 4 with confidence. The problems of these micro SIM cards are easy to solve.