Cases with undetermined numbers of incoming calls on the mobile phone are not uncommon. It does not matter which mobile operator serves the subscriber. Also, the make and model of the device are not important. Meanwhile, there is a way out of this situation, as well as an explanation of what is happening.
An incoming call, even in memory, is sometimes displayed as unfamiliar. Similar situations have been reported by Xiaomi and Samsung. They are seen on all mobile operators. The situation sometimes becomes fateful. The subscriber cannot think of anything, although he tries many ways. They even noted the ineffectual replacement of SIM-cards.
Causes of difficulties
No radical measures will be required, because there are few prerequisites provoking malfunctions in the operation of the apparatus that has become familiar. Can cause unpleasant consequences:
- lack of funds on the account;
- failure of parameters;
- incorrect display status of the number;
- country set in the settings;
- problems that occurred during the transfer of device contacts to another device;
- numbered "doubles";
- lack of space on the phone due to clogged RAM or lack of internal memory;
- update, manual flashing;
- using network activation with Gevey Sim.
To display incoming numbers, the connection of this service is sometimes requested from the subscriber. Operators do not always notify about this condition only.
Balance check and SIM card
If even familiar numbers are not identified, you should first of all not get discouraged and start acting. The solution is quite simple, but if, nevertheless, none of the measures helped, it makes sense to change the SIM card. When you replace it, the usual number is saved.
Be sure to check if all contacts are correct. It is very important that they start with "+7", there are no repetitions. Such duplicates must be either merged or deleted. Check the balance. If it “went into minus” or it says “zero stock”, which especially concerns subscribers of “Tele2” or “Beeline”, problems begin with incoming calls.
Normal operation is restored by replenishing the account to a positive value. If you have purchased a new SIM card, it is likely that the number identification option is disabled. In this case, you need to contact the operator to find out how to activate the service.
There is an option to go to his website by entering your personal account and manually setting the option. There are special applications. After downloading them through the "App Store" or "Google Play", installation and launch, everything is set manually. Thus, MTS offers its own application "My MTS". The required service on it is called auto-identification of the number.
Setting options
To solve the problem, it is important to check if the defining function is active. In the settings on the "Phone memory" put a tick. To do this, in "Contacts", select "Functions", "Options", "Show contacts".
The cell names vary on different devices.
Alternatively, it makes sense to use an alternative "dialer" exDialer, PixelPhone, True Phone, that is, market programs. They successfully replace the application, doing all of its work.
IPhone Problems
If the user has an iPhone with a network activated via Gevey Sim, then it is important to make sure that the correct country is selected in the settings. You can try various options.
In some situations, the solution is given by either the European states, or Russia or China. Nothing should change irreversibly on the smartphone, and the previous value can be returned.
With a recent update or flashing of the device, it is possible to roll back the system or reset to the original parameters. To do this, go to "Settings", then select "General settings", "Archive and reset". Then press "Reset device".
With another method, the smartphone is turned off. Along with this, press the "Menu key", "Volume up" (if available) and "Power off / on".
- In addition to the last button, do not let go, hold it for about a third of a minute until "Recovery" appears.
- In the new window, select the required item "factory reset" with the volume buttons, reset and delete the data.
- Then the device is rebooted.
Such an algorithm is able to solve any difficulties associated with not displaying incoming messages.
Difficulties with Xiaomi
Xiaomi devices cause a lot of difficulties for users. The problem is caused by the device's own MIUI system. To get rid of problems, optimization is simply disabled. For this purpose, press "Settings", "About device".
They actively press the "MIUI Version" key, repeating the action until the "Developer settings are open" table appears on the screen. After that, you can go back, select the "Advanced" item and wait for the "For Developers" menu to appear. "System update" is pressed and turned off.
Be sure to check whether the official version of the Xiaomi smartphone has been purchased. If the device was purchased with the "ROM" modification without specific instructions, then this is a flashed illegal license. Often in stores, such smartphones are sold with the mark “For Europe”. Only a flashing will help to solve the difficulties with determining the incoming ones.
The proposed measures can help in solving the problem. All options must be used.
For the most part, you can fix the problem quickly. If none of the methods helped, including flashing, a visit to the service center is necessary. However, before the hike, it is important to check how another SIM card works on this device.
If there are no problems with it, you should immediately go to the operator and just change the wrong card.
