Phones have long become full-fledged participants in our lives. Humanity is so accustomed to gadgets that few people can refuse to use the phone even for a day. But, like everything in this world, phones do not last forever and various breakdowns often occur. Today we will talk about unlocking the SIM card slot in your phone. If you are the happy owner of a smartphone, we recommend visiting the official website of the project, which is located at the link: https://dipol.com.ua/. Here are the most important articles that will help you, in some cases, deal with a phone breakdown on your own.
Problem with blocked SIM card slot
Sometimes there are times when phone users decide to change their operator mobile communications. But, when I try, the phone gives an error and says that the SIM card slot is blocked. When you contact support, you can only hear that the smartphone is configured for one specific network and nothing can be done about it.
Naturally, this problem has a solution, and today we will try to figure out what it is. First, you need to understand the very term “unlocking a SIM card slot.” The process is very simple and requires entering a special code using the phone's keypad. The main goal is to remove the blocking and ban on the use of other operator cards established by the manufacturer or seller of the phone.
If we carry out this action, it becomes possible to use SIM cards of any other compatible operators. But, it’s too early to rejoice and if you got the opportunity to use other SIMs, this will not provide you with full use of the phone.
How is the presence of a SIM card slot limitation determined?
The first thing you need to do is look at the package of documents that the seller provided you with at the time of purchase. If you see the word “Unlocked” on any of the pages, then your phone is fully capable of working with any SIM cards various operators. Another method is to simply contact the operator and clarify this information or insert another operator card and see.
Our official resource has collected even more detailed information about the decision various problems, which arise with smartphones. If you have difficulties using your phone, contact us quickly and find out how to fix it yourself or prevent a more serious error.
Budget smartphone distributed only in showrooms cellular communication Tele2 implies the use of SIM cards from this company. However, owners have the opportunity to unlock the phone and use absolutely any mobile operator. Unlocking Tele2 Mini is described in our article.
How to unlock Tele2 Mini for free?
On at the moment there are two absolutely free ways unlocking access to any mobile operators– official and unofficial. Using any of them will not cause problems with the main operator.
Official procedure
Official unlocking of Tele2 Mini is carried out through any mobile phone store of this company. Before visiting, you will need to take with you the purchase receipt, the device box, and the device itself.
At the communication store, contact the seller with a request to unlock it. No employee has the right to refuse you this service. Give your phone to a company employee and he will unlock it himself. A slightly different option is also possible. The employee will submit an application for unlocking in service center. After this, you will receive a Tele2 Mini unlock code via SMS message. Next, insert the new SIM card into the second slot, restart the phone and enter the code received in the message when the device asks you to do so. Now you know how to unlock your Tele2 Mini phone through a mobile phone store. 
How to unlock a Tele2 Mini phone in an unofficial way?
You can unlock your device without leaving your home. To do this, do the following:
Enter the combination “34127856”;
- Reboot your phone again.
Now the device is completely unlocked and ready to work with any SIM cards.
In rare cases, the described methods do not lead to a positive result. In this case, you will have to reinstall the smartphone firmware. It is not recommended to carry out this action without instructions or basic knowledge. On our website you can find everything
Let's say you decide to change your operator, but the new SIM card refuses to work in your phone. Frustrated, you call support and find out that your smartphone is blocked on the network of the first operator, and nothing can be done about it.
Of course, this is not entirely true. If you are using your device on Android based(), you always have options.
Unlocking a SIM card is not rooting
Before we start unlocking Android phones, let's briefly explain what network/SIM unlocking is.
This is simply the process of entering a specially generated code through your phone's keypad to remove the restriction imposed by the operator distributing the device. This will allow you to insert compatible SIM cards from any other operators and use their services.
Unlocking to use other SIM cards does not give you full access to the phone. Unlocking the bootloader or rooting is a completely different matter. Both of these types of unlocking are legal, but for SIM unlock operator assistance is often required.
Is your phone locked?
Not all phones are locked to one SIM card mobile network. To find out if this applies to your device, first check the documentation. If the word “unlocked” appears on your receipt/invoice, you can be sure that the smartphone can be used with any operator.
Of course, you can contact your operator and ask if you are allowed to use SIM cards from other cellular networks. Or, try inserting a different SIM card into your phone. If a card from another operator does not work, then your device is definitely blocked.
Phones purchased directly from the manufacturer or a third-party retailer like Motorola, OnePlus or Amazon at full price (usually $500-$700) are often unlocked, unlike devices purchased from carriers like Verizon, T-Mobile or AT&T at a subsidized price (from 0 to 200 dollars).
But if you find that your phone is under Android control blocked to a certain operator/mobile network, how can I unblock it?
Fraudulent applications for unlocking SIM cards
First, don't look for unlock tools in the app store Google Play. Such services have a bad reputation, and most of them are simply scams. At best, they won't be able to unlock your phone.
In addition, you should avoid “phone unlocking tools” presented on file-sharing sites or Bittorrent networks. These utilities are most often infected with Trojans and other malware and are very rarely suitable for the phone you are trying to unlock (contrary to their description).
There are legal and safe ways to unlock your smartphone to use a different SIM card.
Surprisingly, you can contact your operator about unlocking your phone or tablet. In fact, this is your best option.
Since February 2015, the owners mobile phones in America may ask their cellular networks to unlock devices to switch to another operator. This puts the US on par with the European Union (and repeals an unpopular law passed in 2013). In addition to this, operators are required to inform their customers about the possibility of unlocking the device through a note on the monthly bill.
First, find out if your phone can be unlocked. If the smartphone was purchased under a contract, it contains unlocking conditions. If the initial two years have not yet passed, you will have to pay a penalty for early termination of the contract. After this, you will receive an unlock code and can safely use another SIM card.
People who bought their phones directly usually need to wait 12 full months from the time of purchase and ensure that all bills are paid. Then the network will provide you with an unlock code.
To remove a network/SIM lock, you will need to verify the IMEI (International Mobile Equipment Identity - a unique code used to identify your phone on any network) of your phone or tablet.
In Android IMEI number can be quickly found by typing *#06# or by opening Settings > About phone > Status > IMEI information. After transmitting this 15-digit number, the operator must provide you with a PIN code that allows you to use a SIM card from another network.
(This process may vary depending on cellular network. For example, a new operator may require you to enter a special code to use their network.)
This is especially useful if you are traveling in other countries and your device does not support two SIM cards at the same time.
Although carriers in America are prohibited from charging for this service, in the UK and Europe you sometimes have to pay a small administration fee to unlock your phone.
Find a reputable smartphone unlocking service
If your network does not support requests to unlock your phone, you can use one of the reliable online unlocking services. However, finding such a service can be difficult.
We advise you to use such services only as a last resort, if the operator refuses to help and you have no other choice. These sites require you to enter your IMEI to generate an unlock code. But they are not regulated in any way and, although paying with PayPal provides you with some protection, they are not always reliable.
We have tested the sites www.safeunlockcode.com and sim-unlock.net in practice, but we do not guarantee that they will work for your smartphone or tablet.
Have you unlocked your device?
Unlocking a smartphone or tablet is not perfect solution for everyone. We recommend that you first weigh the pros and cons of this process, and also think about what you will gain from it.
Does another operator offer better conditions? If you live in a large city, local Wi-Fi(secured via VPN) may be a much better (and cheaper) option.
Have you unlocked your Android device? Tell us about it in the comments.
This method is also suitable for other OYSTERS brand devices. Calm down and don’t be afraid, there are no unsolved problems. What we need: direct hands and some good software.
The problem can be solved in several ways, but first, let’s determine what exactly is broken in our tablet. If you entered the wrong PIN code for the SIM card several times and the tablet or phone shows “that the SIM card slot is blocked,” then use 1st way.
Pay attention to second way only needed in those cases: if your tablet froze, contained a lot malware and in addition brought out a notification about the blocking of the SIM card slot. Since the second method involves completely flashing the tablet or phone, without returning to old version systems.
Method one:"Let's use the Engineering menu"
To call engineering menu, you need to load the tablet, the form for entering PIN codes will appear again, press END, or if it does not appear, just click on the blue tube of the phone, where to call and type the following command:
*#*#29305652#*#* or *#*#3646633#*#*
After entering, we should be transferred to the engineering menu, here we select everything step by step:
We go down and click:
Simme Lock >> 1 Sim >> Network Personalization >> Unlock >> Enter 12345678 ( 8 digits) >> Finish >> Unlock Permanently( unlock forever).
For the second Sim cards, everything is the same, except for the password numbers, they will be there 9 digits. We go down and click:
Simme Lock >> 2 Sim >> Network Personalization >> Unlock >> Enter 123456789 ( 9 digits) >> Finish >> Unlock Permanently( unlock forever).
Method two: « Full firmware tablet"
In order to flash the tablet you need to download official firmware from the manufacturer's website "http://www.oysters.ru/information/download/" (the link was replaced because their official website has moved, the link will open in a new window) you can also select the firmware for any other tablet of the OYSTERS brand:
Screen diagonal 7"
T62I_3G, T72H 3G, T72HA 3G, T72HM 3G, T72HMS 3G, T72HMI 3G, T72HRI 3G, T72HS 3G, T72HSI 3G, T72N 3G, T72MD, T72MR, T72MR 3G, T72MS, T72MS 3G, T72X 3G, T72ER 3G, T74MS, T74 N 3G, T74HMI 4G, T74HS, T74MAI 3G, T74ER, T74MR 4G, T74MR, T74MRI 3G
Screen diagonal 8"
T84HAI 3G, T84HRI 3G, T84ERI 3G, T84HVI 3G, T84MRI 3G, T84NI 3G, T84NI 4G
Screen diagonal 10"
T102ER 3G, T104B 3G, T102MR 3G, T102MS 3G, T104ER_4G, T104HMI_3G, T104MBI 3G, T104HVI 3G, T974HAI 3G, T104W 3G/T104WMI/T104WSI 3G/T104WRI/
You need to remember that if you are downloading the firmware for MTS, then SIM cards from other operators will not work except for MTS, and the archive package should also contain instructions for the firmware, be sure to read it.
As soon as you downloaded the archive, unpacked and launched the program for firmware. The first thing you need to do is format the tablet system, to do this, check the VALIDATION checkbox, press the FORMAT button, on the device itself press the RESET button with a pin or needle to start the process, wait for completion and disconnect the tablet from the computer. We turn on the tablet and wait for it to boot, loading will usually take longer, be patient, loading will take 5-10 minutes, it all depends on the processor.
As soon as the tablet boots up, you can enter your pin code SIM cards, in most cases, after normal firmware, the tablet does not ask for a PIN code at all.
If anyone has anything that is not clear, write comments, I will answer any questions you have on this topic.
We reveal all the secrets of Android Devices
SIM lock, simlock, network lock or subsidy lock is a special type of phone lock, the essence of which is that the device can only work with SIM cards a specific operator ( SP lock or Service Provider Lock) or within a specific country. How to bypass these restrictions (do sim unlock), you can read in this post, but first a few words about the problem itself.
On Android smartphones are blocked using two codes - country code (MCC) And operator code (MNC). When starting up, the phone recognizes both codes shown on SIM card. If they do not match the values specified by the operator, the device does not start and displays a message stating that SIM card doesn't fit. If both codes correspond to the specified parameters, then the smartphone boots into normal operating mode. Can also be used as a blocker MSIN- code for each specific SIM-cards. In this case Android the smartphone will only work with one single SIM-by card.
SIM lock often used by operators on phones that are sold below the factory price, but with the obligation to use a contract for the provision of communication services of this operator for a specified time. Thus, the operator covers the costs associated with purchasing a smartphone and then selling it at a lower price: due to blocking Android the user simply cannot change SIM card, and use the services of a competing mobile communications provider.
To unlock Android smartphone ( sim unlock) you must use a special code. As a rule, when the contract expires, the operator informs the user about it, but for this you will have to wait at least a year, or even two. But the problem can be solved much faster. First, mobile operators sell unlock codes. Most likely, you will simply have to cover the costs incurred by the operator when selling the phone at a reduced price. You can also use special services and applications, but more on that a little later.
Separately, it is worth noting the legality of the procedure. On the territory of the CIS countries, there is not a single law that would prohibit sim unlock. Moreover, there is legislative practice in the world, according to which the sale of phones with locked SIM cards prohibited.
Basic methods of unlocking Android smartphones (sim unlock)
This is an application that allows you to unlock smartphones and tablets Samsung Galaxy (S, S2, S3, S4, Tab, Tab2, Note, Note2). In this case, no code is needed, and unlocking is carried out in a couple of taps. The application itself is free, but you will have to pay to remove restrictions. also allows you to create and restore backups EFS and issues full information O nv/lock.
Unlock.io from SDWebs
But this application works on a slightly different principle. It provides unlock codes. On the page in Google Play it is written that from SDWebs works with all models Nokia, Samsung, Sony, Alcatel, LG, Motorola, HTC, Sony Ericsson, Huawei, Blackberry, iPhone. Users complain that the cost of the service is too high, but this did not stop it from gaining more than 20 thousand installations. Payment is made via PayPal. And to receive the code, you need to enter information about your Android smartphone and pay for the service.
Similar to the application described above. Receives the unlock code for the following Android smartphones:
- Samsung(Galaxy S2, Galaxy S3, Note, Note2 and )
- LG(Optimus L3, L7 and L9)
- HTC(One S, Inspire, Desire HD and Sensation)
- Motorola(RAZR XT, ATRIX HD, Defy mini, Motoluxe)
- Blackberry(Torch 9860, Curve 8520, Bold 9780)
- Huawei(Ascend, Huawei U8650, Fusion)
The cost of the unlock code in both cases depends on the model Android smartphone and operator country. Payment can also be made via PayPal. The only major difference is that the application allows you to become a reseller and unlock other smartphones with its help, earning money from it. To do this, you need to contact the developers and activate a special account.
