The phone has become an integral accessory and assistant in our lives. But sometimes some breakdowns upset us. Often the phone does not see the SIM card. With such a malfunction, a message appears on the display of the cellular device about the need to insert it. Offline inclusion may also occur if there is support for working without a SIM card. How to be in this situation? First you need to figure out why this happened.
What are the problems with the sim card
There can be many reasons. The main thing is the malfunction of the SIM card. This happens when she wears out or her contacts get damaged. A particularly great risk of this is the frequent replacement of SIM cards, reinstalling it in different phones and devices. In this situation, you need to contact your mobile operator, he will replace your card.
It also happens that the phone does not see the SIM card, as it is locked to a specific operator. That is, it does not support numbers of other companies. You can cope with this problem by “locking” your device under other operators. Not everyone understands how this procedure is done; it is better to find a service center.
A malfunction of the slot in which the card is installed is a common situation. With her, the phone does not see the SIM card. This also happens when numbers are often changed, if the slot or the device itself is damaged. It is necessary to carry out diagnostics and replace the part in the service center.
The phone does not see the SIM card even if the operating system or software (software) of the device is interrupted. This happens with incorrect flashing, as well as with incorrect reinstallation. How to fix such a nuisance? Reinstall, you can still restore the backup. If you can’t cope on your own, then go to the service center.
Let's consider a number of malfunctions in more detail in order to know what to do in specific cases:
- Damage to the SIM connector (this is the card holder), which happens when you carefully remove or insert a SIM card, when improvised devices are used that can harm. In this case, the contact petals may bend or break. Sometimes it is possible to replace such elements, otherwise a new connector is needed.
- The device also loses the card if there is a violation of soldering at the connector contacts. The reason is, for example, the fall of the phone or also the impact of improvised means. Eliminates breakage by soldering the terminals.
- Sometimes the elements of the strapping of the circuit of the sim-connector fail: resistors, capacitors, varistors. Moisture and shock are what makes this happen. All defective items must be replaced.
- It happens that the strapping elements break off when changing a SIM card or wear out. It is necessary to restore all the details according to the scheme. Contact the service.
Here is an example from life. Recently, a person has encountered a problem in which the HTC phone does not see the SIM card. He was recommended two options:
1. Wipe the contacts of the card with an eraser, as they could oxidize or become dirty.
2. Go to the operator and ask for a new SIM card.
The man said that rubbing the SIM card with alcohol helped. Only do this carefully! Each case must be considered individually, but do not worry, often the situation can be corrected!