Any smartphone can break down at any time, and the scale of the problem can be very different. For example, the Lenovo device does not see the SIM card and, accordingly, you cannot make calls or send SMS from it. In such cases, you must use the recommendations from this article.
What to do?
There are several ways to solve the problem: replacing the SIM card, repairing the slot or flashing the device (sometimes problems arise due to low-quality software).
Testing the SIM card
If the problem is with the SIM card, then this can be very easily determined. Try inserting it into another phone and if the card is not detected, then you need to contact the service center of your mobile operator to replace the SIM card.
Problems with the slot
If the problem is definitely not with the SIM card, then you can try to carefully clean the contacts of the SIM card connector using a cotton swab. You should also carefully analyze the integrity of the contacts. It is possible that one of them is broken and therefore the SIM card cannot be read, in which case you will have to take the smartphone to a service center.
Flashing
If everything is in order with the slot and SIM card, then installing new firmware can help. You can reflash the device using a computer or by first downloading the software onto a USB flash drive. More detailed information is available.
Lenovo does not see the second SIM card
If the smartphone does not detect only the second SIM card, then again, the reason may be either in the slot or in the card itself. Another option is to activate the SIM card using a specific set of characters.
For example, for the A916 model you need to dial the combination “*#*#5448264#*#*” in the “dialer”.
Results:
If your smartphone does not read the SIM card, then you can try to solve the problem yourself, but in some cases you will not be able to do it without the help of experienced repairmen.
Lenovo tablet does not see the SIM card, what should I do?
Having discovered that your Lenovo tablet does not see the SIM card and does not recognize it, you can deal with the most obvious reasons and try to fix the problem yourself. Before contacting the service center, read our article and make sure that you simply do not have the autonomous mode “on the plane”.
Is the SIM card itself working?
You must first check the serviceability of the SIM card itself. Test its performance on another device. It is also advisable to clean the contacts. Since during long-term use it could become dirty. Use a paper eraser to do this, running it over the contacts of the SIM card.
Make sure you are using the slot provided by the manufacturer. Do not forget that the card must be installed with the operator logo facing up and the chip facing down.
If the card is not detected on another gadget, then simply replace it at your operator’s salon. The procedure takes 5-10 minutes, the remaining funds are transferred in the same amount to a new one. The service itself is free for subscribers.
Right size
You cannot ignore the modern standards declared by the manufacturer for the specific model of your Lenovo tablet. The SIM card should not be larger or smaller than the SIM slot. If you cut it yourself or didn’t do it carefully, there is a high probability that you damaged the contacts of the chip and it is now not working properly.
Replace your SIM card with your operator and contact a specialist to cut it. Modern cards already have the ability to choose the size you need. The chip on the card itself has a minimum size just to be able to use both standard size and nano-format for ultra-thin gadgets.
SIM reader slot serviceability
Using a SIM card format that is not suitable for the slot size leads to disastrous results. With repeated attempts to fit a larger or smaller card, there is a high probability of damaging the connector itself.
You can remove the back cover and unscrew a few bolts located around the perimeter of the rear case, disconnect it and see damage or missing contacts on the SIM readers. Then you need to replace them with new ones by contacting a workshop to restore your Lenovo tablet.
Software glitch
If the Lenovo tablet does not see the SIM card of MTS, Beeline, Tele2, Megafon, the problem may be of a software nature. Remember, perhaps the day before, you installed some application? Incorrect operation of some applications or the presence of malware may well cause such damage to your device. Remove the most recently installed applications and perform an anti-virus cleaning.
Another simple solution may be to reset the settings to factory settings. Just before doing this, save all important data, since during the hard reset procedure the tablet will return to the state when you first purchased it.
A more radical, but no less effective way is to flash the Android system. This eliminates a huge part of the problems in the operation of gadgets on this platform. Just be sure to use official versions from licensed providers.
Originality of the device
A factor such as the originality of your gadget when asked if a Lenovo tablet does not see a SIM card becomes relevant when you are the owner of a so-called copy. When you try to install your operator's card, the automatic settings simply do not work. By default, they are set to operators in the country of origin (for example, China). You need to manually select the GSM networks available in your region in the corresponding section of the settings menu.
Lenovo tablet does not see the SIM card, what should I do?
Having discovered that your Lenovo tablet does not see the SIM card and does not recognize it, you can deal with the most obvious reasons and try to fix the problem yourself. Before contacting the service center, read our article and make sure that you simply do not have the autonomous mode “on the plane”.
Is the SIM card itself working?
You must first check the serviceability of the SIM card itself. Test its performance on another device. It is also advisable to clean the contacts. Since during long-term use it could become dirty. Use a paper eraser to do this, running it over the contacts of the SIM card.
Make sure you are using the slot provided by the manufacturer. Do not forget that the card must be installed with the operator logo facing up and the chip facing down.
If the card is not detected on another gadget, then simply replace it at your operator’s salon. The procedure takes 5-10 minutes, the remaining funds are transferred in the same amount to a new one. The service itself is free for subscribers.
Right size
You cannot ignore the modern standards declared by the manufacturer for the specific model of your Lenovo tablet. The SIM card should not be larger or smaller than the SIM slot. If you cut it yourself or didn’t do it carefully, there is a high probability that you damaged the contacts of the chip and it is now not working properly.
Replace your SIM card with your operator and contact a specialist to cut it. Modern cards already have the ability to choose the size you need. The chip on the card itself has a minimum size just to be able to use both standard size and nano-format for ultra-thin gadgets.
SIM reader slot serviceability
Using a SIM card format that is not suitable for the slot size leads to disastrous results. With repeated attempts to fit a larger or smaller card, there is a high probability of damaging the connector itself.
You can remove the back cover and unscrew a few bolts located around the perimeter of the rear case, disconnect it and see damage or missing contacts on the SIM readers. Then you need to replace them with new ones by contacting a workshop to restore your Lenovo tablet.
Software glitch
If the Lenovo tablet does not see the SIM card of MTS, Beeline, Tele2, Megafon, the problem may be of a software nature. Remember, perhaps the day before, you installed some application? Incorrect operation of some applications or the presence of malware may well cause such damage to your device. Remove the most recently installed applications and perform an anti-virus cleaning.
Another simple solution may be to reset the settings to factory settings. Just before doing this, save all important data, since during the hard reset procedure the tablet will return to the state when you first purchased it.
A more radical, but no less effective way is to flash the Android system. This eliminates a huge part of the problems in the operation of gadgets on this platform. Just be sure to use official versions from licensed providers.
Originality of the device
A factor such as the originality of your gadget when asked if a Lenovo tablet does not see a SIM card becomes relevant when you are the owner of a so-called copy. When you try to install your operator's card, the automatic settings simply do not work. By default, they are set to operators in the country of origin (for example, China). You need to manually select the GSM networks available in your region in the corresponding section of the settings menu.
For some time now, tablets have been equipped with special 3G modems and GSM modules, which has allowed the manufacturer to bring devices of this type to a new level of demand. However, along with new communication capabilities, the above-mentioned tablet devices inherited from their smaller brothers (meaning ordinary cellular devices) a certain predetermination to various kinds of network failures. However, in most cases, the seemingly problematic situation “the tablet does not see the SIM card” has a fairly simple solution. This article will help you understand the reasons that led to the “technical blindness” of the device and understand how you can independently eliminate the identified malfunction. So let's turn on the positive and move on!
Form factor features of starter packs
You will be surprised, but in most cases the reason that the tablet does not see the SIM card is precisely the incorrect positioning of the SIM card itself. If the subscriber GSM chip does not fit into the special slot of the device or unnaturally falls into the bowels of the electronic device, the SIM card may not meet the required standard.
Today, the most common use of SIM cards is the traditional type (MINI SIM). The slightly reduced size of GSM cards belongs to the MICRO SIM type. The NANO SIM standard closes the list. By the way, these are exactly the SIM cards that Apple devices are equipped with.
So, if after installing the starter package you suddenly find that the tablet does not see the SIM card, make sure that the installed SIM meets the technical requirements of the tablet device manufacturer. You may need to purchase a special adapter or carefully trim off the extra millimeters of the plastic frame of the GSM chip. In the context of the above, it becomes clear: the size of the SIM card matters.
“Naughty hands” and the consequences of their owner’s thoughtless haste
There are often cases when an unlucky user tries at all costs to shove or squeeze a SIM card that clearly does not want to go in (for known reasons) into the corresponding housing hole. As you understand, after such an “execution” the device is unlikely to work fully in the future. Usually, excessively applied force and the reluctance of some users to understand the current situation in more detail (the tablet does not see the SIM card) lead to a disastrous result: the internal connectors of the SIM receiver break. In the latter case, the “hurry” cannot avoid specialized repairs. Well, if you take into account the fact that the model is a brand name, then this kind of repair will cost a lot of money.
Chinese "troubles", or Where is my operator?
Sometimes the user does not even know that he has become the owner not of the original device, but of a clone from the Middle Kingdom. It is worth mentioning that recently the stereotype “Chinese means...” has become somewhat outdated. However, the relevance of the consequences still applies to devices whose cost more than corresponds to the concept of “cheap”.
So, it may happen that when you insert a SIM card, your device will not be able to detect the operator, that is, the automatic settings will not work. It’s quite natural that the question will definitely arise in your head: “Why doesn’t the tablet see the SIM card?” The answer to such difficulties could not be simpler: search for active GSM networks manually, and after you specify the desired communication provider, the problem will be resolved.
Software failures and methods for eliminating them
A rather difficult situation is when, for example, a Lenovo tablet does not see a SIM card that is known to be working. What to do in this case?
- Contact the store with a reasoned complaint about a malfunction of the device.
- Check the firmware version yourself for compatibility with your device.
- Uninstall third-party software.
- Perform a hard reset of the device, first saving the necessary data to the memory card.
If there are no positive results, seek help from a specialized workshop. Calm down, the flashing process is a fairly quick and relatively inexpensive procedure for this type of electronics such as a tablet.
Finally
So, we can say the main points of the question: “The tablet does not see the SIM card, what should I do?” You and I have allowed it. However, we should not forget that the cause of unnecessary worry may be the user’s banal inattention. Agree, turning to a specialist for help will make a person look a little stupid after the problem with the SIM card is resolved by simply deactivating the autonomous or “flight” mode. By the way, the priority assigned to Wi-Fi networks by the user can also become a kind of culprit for the inactivity of the GSM chip. And lastly: do not discount the negative impact of the environment. After all, sometimes the question voiced in the article “why the tablet doesn’t see the SIM card” can have a funny and, nevertheless, truthful answer: “Write less SMS in the rain!”
That's all. All the best to you and... protect your gadget from bad weather!
