The phone does not see the memory card (flash drive): what to do? does not want to accept the SD card There is no contact for the Samsung s3 memory card.

Is there a serious problem? ? Need to solve this problem? Our Gsmmoscow service can easily handle the job. Here, experienced specialists will first identify the breakdown, after which they will offer you ways to solve the problem.

Description of the malfunction and solutions:

If your phone doesn't see flash Samsung card Galaxy S3 i9300, there are usually several reasons for this:

1. First of all, you will need to check the SIM card itself, which very often breaks.

2. The contacts of the flash reader are oxidized. In this case, you will need to do cleaning.

3. The flash reader is damaged. If it is broken, the part will need to be replaced.

4. The memory card control chip is faulty, which can also be replaced.

5. If the memory card does not open after liquid has entered the phone, you need to do diagnostics to determine the breakdown. We will do the diagnosis absolutely free of charge.

How to troubleshoot: does not see the flash card Samsung Galaxy S3 i9300

If the Samsung Galaxy S3 i9300 does not read flash, you can call a courier to your home who will come and pick up your cell phone. He will deliver it to our service center Zhsmoskov for free. You can also come on your own. You will find the address in the contacts section.

Once your device is with us, we will provide you with the following services:

1. Free diagnostics. In most cases, it lasts 20-30 minutes, after which the breakdown will be accurately determined.

2. Once we know why the flash drive is not working, we will inform you about the cost and time frame for repairs.

As a rule, in order to replace a microcircuit or flash reader, it will take more than 2 hours.

We will restore the operation of your Samsung Galaxy phone after moisture has penetrated into the device. Depending on the severity of the damage, the work will take from 3 hours.

3. As soon as cellular telephone We will repair it and give you a long-term warranty for a year.

4. You can also find out the exact cost; all prices are in the price list. If you suddenly need more accurate information, call our operator, who will always tell you what to do and answer all questions.

If you no longer see the Samsung Galaxy S3 flash card, we recommend that you do not delay solving the problem. It's best to go straight to service center for help, because only here do real professionals work who can carry out repairs of any complexity. We have the necessary equipment, as well as original spare parts, in stock. Only in our service center you can purchase original spare parts at the most favorable and reasonable prices.

Do you need to fix a problem urgently?

It often happens that equipment breaks down suddenly, and then you need urgent repairs. Our technicians know how to fix the breakdown, so come to our service center right away. As a rule, urgent repairs take about 20-30 minutes if the damage is not serious.

We will not take money for urgency. Once we fix the problem, you will be given a long-term warranty. We can easily restore the operation of the cell phone, after which it will be possible to continue using it again.

First of all, a telephone is a means of communication, and only then a multimedia player, a tool for surfing the Internet, a camera, etc. And if the smartphone does not accept SIM cards, its main function will not be available. Problems with SIM on Samsung Galaxy can arise for various reasons. Some of them can be eliminated on your own, while others require more professional intervention. Let's look at why Samsung doesn't see the SIM card, and what to do in a particular case.

Main causes of SIM card problems on Samsung phones

There are a lot of factors leading to the fact that the device does not see or cannot recognize the SIM card. However, all of them can be combined into three groups:

  1. Mechanical problems mobile device. They occur when a card is frequently removed/inserted into the SIM slot, the device is damaged as a result of a strong impact, or moisture penetrates under the case.
  2. Problems related directly to the SIM card. May be due to the presence of printed circuit board scratches, chips and other mechanical defects, expiration of the SIM card or its blocking by the operator.
  3. Malfunctions of the operating system or installed software. Samsung may not see the SIM card after it is disabled due to installation unofficial firmware or by deleting the IMEI number.

Let's consider each of the possible options in more detail.

Mechanical damage to a mobile device and how to fix it

If problems arise with the operation of the SIM card, the first thing you need to remember is whether the phone has been subjected to any external influences. So, if you dropped it, there is a possibility that the power amplifier, microcontroller, connector or other module may fail or become unsoldered. In such cases, it is better to contact a service center.

If there are no prerequisites for the Samsung to break down, try the following:

Troubleshooting SIM card problems

If you determine that the source of all the troubles is the SIM card itself, it is recommended to act in the following order:

Software malfunctions

If you are the owner of a dual-SIM Samsung and the SIM card is not visible in only one of the connectors, see if the second slot is enabled in the device settings. Required function located in the "SIM Card Management" section.

There are cases when, after a smartphone is infected with a virus or its independent firmware NVRAM – non-volatile random access memory – is damaged on it. This is where the IMEI of the mobile device is stored. If you erase it, Samsung will not detect SIM cards.

To fix the problem, you will need to restore the IMEI. This can be done through the engineering menu:


After restart phone IMEI will be restored and everything should work. If this does not help get rid of the problem, all you have to do is reset all settings to factory settings or reflash your smartphone via PC and Samsung program Kies.

Despite the wide range of smartphones with large volumes internal memory, phone options that support the installation of memory cards do not lose popularity. On this removable media can be stored various information: video, photo, text files and other types. Active users of such media often have a question about why the flash drive is not visible on the phone.

What should you do first if your phone stops recognizing MicroSD?

There are several main reasons why a flash card is not read by the device. Before looking for an answer to the question of why the phone does not see the SD card, you need to try to restore the operation of the media yourself. To do this, follow the instructions:

  1. Restart your device. To do this, hold down the Power button for a few seconds and then select Restart from the menu that appears.
  2. Many devices that support a memory card have a removable battery. If you have this model, remove the battery for a few seconds and then replace it.
  3. After the next check of the card’s functionality, which was unsuccessful, perform another test - remove the microSD and clean its contacts with a soft cloth. Also check the quality of the contacts in the slot (they should not be deformed or oxidized).

If preliminary measures do not produce results, then you can look for the reason why the phone does not see the memory card. The reason may be in the media itself or in the device. If the serviceability is hidden in the flash drive, then it will have to be replaced - the cards are not suitable for repair. As for the smartphones themselves, if they malfunction, you can try to fix them yourself or at a service center.

Correcting an inappropriate storage format (memory card)

The most common reason why the phone does not see the SD memory card is an incorrect file system format or the presence of bad sectors. Usually, when connected to a computer, such cards are not read, they give errors, and ask. The reasons for such a flash drive malfunction may be:

  • the Android operating system does not accept markup or file system, with which the drive works;
  • memory layout failure;
  • the user carried out formatting with incorrect settings.

Usually the reason is trivial - manufacturers prepare modern flash drives to work with the exFAT file system, which is not accepted by all devices. This problem can be resolved by formatting the media. It can be produced in several ways:

  1. You can format in using the mode. This method is labor-intensive and not very convenient, since you have to go to the system menu and look for the desired item. We will not present it, since there are better methods for solving the problem.
  2. PC utility. In this case, you will need to install on your computer free program and insert a flash drive into it using a card reader. If you have a laptop, then most likely you have an SD slot. Along with microSD cards, adapters are sold that are specifically designed for this slot. It’s easy to manage the program – you need to select it from the list hard drives select your card, and then stop at the “Format” item in the menu. Before starting the process, you need to select the file system that you want to use on the media.
  3. Usage standard means Windows. The difference between this option and using special utility The only difference is that the formatting option can be accessed by right-clicking on the media name. You can connect a flash drive using an adapter. There is another option - use a standard cable and use it to connect a phone with media installed in the slot. The second method of detecting media by a computer should be used only in extreme cases.
  4. The Android operating system has another built-in method that will help you solve the formatting problem. There is a “Format SD” function in the memory management menu, you can use it. This feature should only be used in cases where the smartphone detects the card, but cannot use it due to an error.

In most cases, simple formatting will solve the problem. If this option does not suit you, continue searching for the reason why the phone does not see the flash drive.

MicroSD has failed

The second common reason may be a complete failure of the memory card. In this case, it will not be detected by either a smartphone or a computer. The causes of failure may be:

  • Frequent media reinstallations without using the pre-stop mode;
  • overheat;
  • mechanical damage;
  • oxidation of contacts due to moisture ingress.

In this case, even recovering files from the memory card will be difficult. You should replace the media with a new one.

Memory card incompatibility

Buying new map memory for your smartphone, you must pay attention to the manufacturer’s recommendations. One of common reasons Why the Samsung phone does not see the memory card is the wrong choice of its size.

For example, the J120 model only supports media with a memory capacity of up to 64 GB, while users, wanting to “pump up” the device to the maximum, install cards with 128 GB into it. The smartphone will not accept such a flash drive, even after formatting it in the correct format.

No contact in the smartphone slot

You can discover this reason at the preliminary preparation stage. Users often damage the contacts in the memory card slot by inserting it the wrong way. In this case, the reading arcs may become bent or even break off.

Oxide or plaque may also appear on the tracks. In the latter case, you should carefully rub them with a piece of eraser or a napkin barely moistened with alcohol. Then try reinserting the drive; if this attempt is unsuccessful, contact the service center. There you will be able to replace damaged contacts and restore the slot.

Software glitch

If you have not found any obvious reasons why the phone does not see the micro SD flash drive, then you need to check software. First, reset the settings to standard, and then in the “Storage” section, set the option to save files to removable media.

At software glitch, which could not be eliminated by simply adjusting the options or resetting the settings, you may also need to update the device firmware. This procedure will allow you to get rid of critical errors system and change the interface to a more friendly one. If you don’t know how to use smartphones yourself, then you should turn to specialists for this.


Modern phones usually have little built-in memory, and memory cards serve as the main storage media. Sometimes it happens that the phone stops seeing the memory card and you lose access to the necessary files. What to do if the phone does not see the memory card?
If such a problem happens to your phone, do not rush to immediately run to a service center or buy a new memory card. Perhaps the problem can be easily solved. First you need to remove the memory card from the phone and insert it again. If the problem was simply a loose contact, this should help.
But if this doesn't help, there's still no need to panic. There is a chance to “cure” a memory card at home. To do this, you need to insert it into the card reader. If the card reader has seen the card, you may be able to save it. Go to My Computer, find your memory card there, right-click on it and select Properties.
The disk properties window will open. You need to go to the Tools tab and find the “Check disk for errors” section there. Click the Run check button. In the disk scan options, check the box next to “Scan and repair bad sectors” and click Run. After that, insert the card into your phone and check if it sees it.
If this method does not work, you can take extreme measures and format the memory card. If the card reader sees the card, copy the information from the memory card to your computer in advance, because formatting will destroy all data on the card. Perhaps, after formatting the card on a computer, you will need to format it a second time in the phone itself.
If all these methods do not help, you will have to contact the service center. The wizard will determine why the phone does not see the memory card and advise ways to solve the problem. So, the reason may lie in the card being damaged, in which case you will most likely just have to buy a new card.
To prevent a similar problem from recurring in the future, you must follow the rules for using the memory card. Physical damage is contraindicated for memory cards; they must not be dropped, bent, or pressed. Also, memory cards should be protected from moisture, direct sunlight and electrostatic discharge, and kept away from heat sources. You cannot turn off the card while information is being transferred.
The problem may also be that the phone does not support the format or size of your memory card. And if it is quite problematic to insert a card of the wrong format into the slot on the phone, then mistakes are made with the volume quite often in the desire to buy a card with more capacity. Older phone models do not support large-capacity memory cards, so be sure to check your phone's instructions to see what the maximum capacity of memory cards it supports.
Sometimes the problem may lie in poor compatibility between the memory card and the phone. Each phone is designed for a specific memory card format. But the catch is that the same format of memory cards can be produced by different manufacturers, and not all manufacturers' cards comply 100% with the standards. As a result, some devices refuse to read these cards normally. Yes, some Nokia phones Doesn't work well with Apacer SD cards.
Therefore, it is important to buy memory cards from trustworthy manufacturers. For example, the Memory Stick format was developed by Sony, and only this company guarantees 100% compliance of the cards with the standard. And SD memory cards can be from different manufacturers, but it’s worth choosing manufacturers whose names are well-known. For example, SanDisk was one of the developers of the format, which means that its SD cards comply with the standard.
If your phone doesn't see your memory card, don't panic: the problem may be able to be solved little blood. And if you still need to buy a new card to replace a failed one, it is important to choose a high-quality memory card that suits your phone in format and capacity.

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