As you know, the main element for identifying the Subscriber when using a new phone is a SIM card that stores all account information - there are three types:

• Mini-SIM card, size of 25 × 15 × 0.76 mm;
• Micro-SIM, with a size of 15 × 12 × 0.76 mm;
• Nano-SIM 12.3 × 8.8 × 0.67 mm, the latest approved from all types of SIM cards.

Most devices have a connector designed to use mini and micro SIM cards. For touch phones The most common format is micro, however, some manufacturers have already switched to reduced nano maps, such as iPhone with 5 generation and Sony Xperia. In the model z3. In addition, some smartphones support the simultaneous operation of two SIM cards, such models are in the title dual refinement, for example, Xperia Z3 Dual.

Inspection sim tray for damage

Regardless of the type of use of the SIM card, it is always placed in a special SIM card slot, which tightly holds the card and connects it with contacts to read information about the subscriber, saved contacts and other information.

The SIM card container is most often located under the back of the phone, if your smartphone allows you to remove the panel next to the battery and a memory card slot. For Sony Xperia ruler Z: for example, xperia z1, z2 and z3 The manufacturer has changed quite significantly appearance Devices, leaving in the direction of an unintended body and by making all the users you need to the side frames. Thus, the SIM card slot in the new Sony Xperia models, as well as the memory card connector, moved from the rear panel and are now hidden under dense plugs that are needed to preserve tightness when entering the water, because the Z ruler from Sony is waterproof.

Memory cards MicroSD format on Sony Xperia is usually set by 16GB or 32GB, to increase the memory of the mobile phone for storing photos and video from the camera, setting applications. Larger flash card support is provided concrete modelbut mainly flags Sony Quietly support 128GB, which most users have enough for all needs.

Appeals to the service center for the repair of the SIM card slot or connector for a flash card - not the most common cause for repair, as the connectors hidden in the case are generally quite difficult. Most often, the replacement of the connectors occurs in a complex with another repair, simultaneously with the replacement of other significant items after falling or entering the phone into water.

In any case, if your mobile suddenly stopped seeing a SIM card, and this is the most common device error, then the smartphone becomes no more than a player and a camera that does not perform the main functions, and it is required to immediately appeal to professionals. Sometimes the replacement of the entire slot for the SIM card or flash card is not required, the problem can be solved by updating software, and the flash card can be trite not to be supported by your model.

In this article, we will tell how to properly insert the SIM card on the phone. New modern models come out with comfortable slots in which the cards of the desired size are inserted without problems.

Yes, and all popular mobile operators produce peculiar designers - sims of three sought-after dimensions: nano, micro and standard.

SIM cards is an identification module of the telecom operator subscriber. From the moment of their launch and before the start of mass sales, several dozen years have passed, and during this time their shape and dimensions were improved. This process was forced. At first, smartphones appeared in the mobile markets, and the places under the back cover were simply not enough. Technologies have been improved, users' requests increased, more and more, phones thinner, and less places.

Such evolution of cards allowed them to decrease almost twice as well, and modern nominating slots were noticeably released space for the remaining parts.

Let's look at what kinds of SIM are, what is their feature, and how to insert SIM:

• Full-size (on the presence of which they did not even have even guess) - the largest in the line, around the perimeter as bank card. Appeared in 1991 with the first wave of popularity cellular communication Among ordinary residents. It is not used in modern phones, sometimes you can meet cars with similar "innovations" a la 90s.
• MINI-SIM - is still used for devices released from the period of 2000 to the beginning of 2010, supports 2G and 3G.
• Micro-SIM appeared in 2003, but on this moment It is considered the most used generation of communication modules. Supported by all manufacturers modern gadgets with 3G and LTE.
• The smallest is Nano-SIM, which looks like its predecessor, only without plastic edges. It appeared five years ago, and is used in all models of the Apple brand and some other premium segment manufacturers.

All kinds of simes are inserted the same - in the allotted slots in the smartphone or tablet. To say exactly where the stand is, it is impossible, since manufacturers reserve the right to place them anywhere, according to their design concept. Sometimes new phones glitched with step by step instructionsIt can also be found in the user manual.

Installing a SIM card

Traditionally, manufacturers place card holders on the right end of the housing (if the cover is not removable), or directly under the battery, if it gets. The following instructions are suitable for the owners of the latter gadgets:

1. Check if your phone is turned off.
2. Disconnect the rear panel.
3. Find a small deepening between the case and the battery.
4. Remove the battery.
5. There you will see slots for SIM cards. They are of different types: separate and two-story. The side you want to keep at the top insert will be depicted near the holder. As a rule, it is inserted with gold contacts down.
6. Gently insert the battery back. Check that it sat tightly.
7. Return the lid to characteristic clicks. They will mean that the lid has become in his place.

In the video you can see how you need to do with modern models, which do not remove the lid:

And here's another video with a healthy lifechak:

Settings

Modern smartphones and sims do not need manual connections. When you first start on a new device from mobile operator Comes Package free settings For all types of cellular services.

In two-minute mobile devicesManaging can deliver a new difficulty. You can select SIM for default actions, or choose yourself with each call and message.

Is the usual SIM card in a slot for Micro-SIM

You can trim the map of ordinary sizes to Micro-SIM dimensions, if the card is old. However, it is much easier and safer to contact the service center, where you will be given a new sim in the form of a transformer - all popular sizes.

If the module urgently needs to be replaced with a smaller, you can cut it by hand with conventional sharp scissors.

What to do with the unsuccessful cropped sim card

However, such experiments are not always completed successfully. If the SIM card was incorrectly cut and damaged, it is necessary to contact your mobile operator customer service points. Replacing the card to another SIM with the maintenance of the balance, tariff plan And, directly, the rooms take it short.

Insert sim that has mechanical damage, Not recommended.

SIM card malfunctions

On their faults, users guess when the OS does not see the module, and does not refer it to the corresponding icon. Causes may be:

• SIM has expired, and it is not intended for further operation.
• It has mechanical damage - scratches, chips and dorms.
• Unsuccessful trimming. She was mentioned above.
• The firmware of the phone is sharpened under a specific buyer.
• Problems with a slot.
• Failures B. operating system and software
• When installing, contacts were damaged.
• Dirt hit the card holder.

In most cases, the card must be replaced, or send a phone to the diagnosis of the master, as it can be hardware problems, and systemic.

Conclusion

Mobile communications and the Internet, throughout the day, are available for smartphones and small card modules manufactured by cellular communication providers. That is why they need to be carefully treated, follow their condition and health. The more gadgets goes, the easier the use of SIM - their dimensions decrease, and the possibilities are growing. We hope this article was useful for you, and you got available instructions How to handle them in different situations.

Video

The most common reason why the phone or tablet does not see the SIM card is a damaged sim read. SIM reader, or sim connector, SIM receiver is made in the form of a socket in which the SIM card is inserted. On the sim card and the SIM receiver there are contacts that they come into contact with the inserted sim card. With a non-accurate, hasty seizure of the SIM card, simply connector contacts can be brought or break away. So often occurs when the SIM card is inserted through the Nano SIM adapter in Micro SIM, which may be fired and part of the adapter will be cling to simply sockets. Damage to the contacts of the SIM receiver may occur if it is attempted to insert the SIM card not in size, for example, in a slot under ordinary sim Map to insert Micro-SIM, or in a slot under Micro SIM attempt to insert a nano Sim card. In modern plates and phones, the SIM card is inserted on the side, and not as before, it was laid on top and pressed the retainer. Therefore, if you incorrectly inserted the SIM card or a smaller map of a smaller map was simply a nest, to independently remove it from there will be problematic. We will have to disassemble the phone or tablet and carefully try to withdraw the SIM card. If the contacts brought a little, you can try to straighten them, acting very carefully. Naturally, such a repair should produce a qualified specialist who knows how to disassemble the device, without damaging anything.

But it is not always possible to do with such a light repair. In some cases, in order for the phone, the tablet again perceived the sim card, you need to replace the socket under the SIM card. This is a thin work in which the defective sim reader first disappear, and then the new one. In such a work without a microscope and soldering station, it is not necessary to do. In addition, we need experience and confidence in their capabilities. By the way, not all service center experts will be able to replace the sim nest. The master must be developed by micro motoric and the accuracy of the movement of hands, he must have excellent eyesight. Therefore, in each workshop or service center There are one or two specialists who are engaged in directly soldering small details.

Therefore, in no case, do not attempt yourself to replace the SIM receiver and do not trust it to make the first oncoming. At best, it may not be possible to replace the sim nest, and in more severe cases you can stay with a completely non-working phone, which may be unrepretentious!

In some models of phones and tablets, the sim reader is not soldered to system board, and joins it through the train. It does not need to solder anything. It is enough to get the necessary loop, disassemble the device and replace.

Above was described by one of the problems in which the phone or tablet does not see the SIM card. But there are difficult cases when the sim slot is damaged, but still the SIM card is not determined. First of all, you need to make sure that the SIM card itself is properly determined in other devices, and the device in which the SIM card is not read is not blocked under the operator. If everything is in order, there are no locks and restrictions on using SIM cards, it means that the malfunction lies in the phone or tablet system board. It may have failed the sim controller that processes the information received from the SIM reader, or this controller does not flow. Usually it happens after the moisture ingress inside the phone or tablet or after a strong impact. IN this case Requires either a drop-in necessary chip, or replace them.

SIM card may not be perceived due to software failure, viruses. You need to try to flash the device.

In our workshop, 48Remont for a short time will be able to establish the reason for which the SIM card is not read and eliminate it. Diagnosis is always free. In stock There are a large stock of SIM connectors and loops required for replacement. Therefore, we have the opportunity to eliminate the cause of malfunction on the day of appeal!

Guarantee!

At the weekend, the familiar brought the Explay Surfer 8.31 3G tablet. When falling from the table, the back cover at the tablet opened, pulling the SIM card inserted into the slot. Alas, such situations with favorite gadgets happened to many of you. However, with great desire, this problem You can solve our own forces.

As can be seen in the photo, the location of the slot attachment is escaped, and on the one hand, along with the foil, stuck to the board (blue circle). It is good that this piece of foil is not a path and you can safely plant it in place (stick).

Red circle marked broken legs slots and their remnants on the tablet board.

In the inspection, it was found that SIM-card was not fixed, that is, the slot itself was damaged. Of course, I would replace it on another, but to the nearest specialized store, where you can buy a slot, 150 km. Having learned about this, a familiar asked, remove the fixation and put a slot as it is (to remove the spring, so that the SIM card does not come back back). But I could not just pull these details, because if you need to change the SIM card or for example, you will have to open the case, without re-catching the slot can not do.

On the photo (after repair) it can be seen that on this model of the tablet, SIM-card is inserted deeply and pulling out without the ejecting mechanism almost impossible.

Thus, I had to repair to the beginning of the slot itself.

After removing the metal cover, I saw that I had a staple with a stapler (only less) there was no wire. It fixed the plastic part, pushing the SIM-card under the action of the springs.

The red circle marked the place where it was supposed to be a locking bracket.

The wire for a bracket must be rigid to accelerate back, so I made a bracket from the spring steel with a suitable diameter.

The diameter determined the hole where the native bracket was installed.

Slightly straightening the spring, launched the pliers tip and bit off. After biting, the end of the wire reminded the blade of the ax. So that it does not damage the plastic parts of the mechanism, rounded his end to a diamond nadfyl.

Temporarily removing for the convenience of an ejector spring, installed SIM-card to the place and, thus, learned the length of the retainer.

The length of the legs of the bracket did it so that it does not exceed the thickness of the base of the slot. Otherwise, the end of the bracket, which is inserted into the foundation itself, could damage the tablet board.

On this, the biggest problem when repairing the tablet (restore slot) ended and the other started - setting the slot into place.

Installing a slot

If there is a new slot, the installation would not be a problem, but since the legs of the native slot were also injured, I had to tinker with them.

For a start, I deleted the remnants of the legs from the board, seeded the places of the battlement flux and began to solder. Soldered by a regular soldering iron by 40 watts, although such details are better soldered by a soldering station. He began with the fact that she stuck and soldered the housing of the slot, then the legs themselves. The short ends of the legs of the slot did not reach the place of their soldering, and had to build up the legs with a thin copper wire. I had to solder every leg trying not to hurt already soldered, but they are at a very close distance (no lesson for the foolish). At the end, the protector with alcohol all the places where the remains of the flux were.

If someone decides still to try to eliminate the breakdown of SIM slot-card, I want to warn: at Explay Surfer 8.31 3G the battery is glitched on back coverWhen disassembling, be careful. With a sharp disclosure of the lid, serious breakdowns are practically guaranteed. At a minimum, pick the battery plug from the board, damage the loops and of course the wires that go on the speakers (marked red).

When soldering, do not overheat fee and slot.

Make sure that the jumpers (blots) between the tracks are not formed.

When repaired, it is desirable that the magnifying glass is at hand, better microscope.

The soldering iron is needed small power, and a better soldering station, otherwise the slot can be mounted and the tablet board can be overheated.

Do not remove remnants of rosin with sharp objects (needle), as you can damage the paths on the board.

Memo: If there is no experience in repairing electronics, you should not even try, otherwise the consequences of this repair (already in the service center) will cost much more expensive, and may not accept the device at all.