The operation helps in many cases when the phone reports the absence of the network. This requires:
Set to factory settings
Factory settings will help eliminate system problems, get rid of dangerous content. However, all games, movies, music and other applications on your phone will have to be reinstalled.
Firmware upgrade
Updating the firmware has a beneficial effect on the operation of the Apple device. The user can easily cope with such a task using iTunes. After the iPhone connects to the PC, the “Overview” tab in iTunes displays the basic characteristics of the device: model, phone number, firmware version, and others. Select the “Update” option.
Hardware issues
Sometimes there is no network on the iPhone due to damage to the hardware: antenna, motherboard and other important parts of the device. In this case, the user will have to contact gadget repair centers.
Antenna problems
More often than others, if damaged, dampness suffers the antenna, which is responsible for receiving a cellular signal. As a result of mechanical action, it oxidizes and breaks down.
Antenna replacement
The service center will help you to replace the antenna if damaged, oxidized or defective.
No connection in the cold
It happens that in severe frost the iphone does not ring. To maintain the functionality of the gadget at negative temperatures, it is recommended to disable 3G and GPS, which interfere with the connection.
Motherboard
The iPhone does not catch the network if the modem area on the motherboard is damaged, while the modem firmware will disappear in the settings. How to check the status of the modem:
Go to “Settings”.
Select the “Basic” category.
In the “About device” item, find the “Modem firmware” item.
The lack of information in the field about the firmware indicates a malfunction of the modem and the need to contact the service.
Service centers in Moscow:
Apple – services: st. Zemlyanoy Val, 65, Moscow, Russia, +7 (495) 229-12-91, apple-services.ru.
Apple Service Center: st. Zolotorozhsky Val, 38, Moscow, Russia, +7 (495) 796-62-52, apple-service-center.com.
IPhone-Doctor.ru: Paveletskaya square, 1, Moscow, Russia, Paveletskaya, +7 (985) 410-11-65, iphone-doctor.ru.
Brobrolab: Derbenevskaya st., 1, Moscow, Russia, Paveletskaya, +7 (499) 110-17-85, brobrolab.ru.
Service center: Nikolskaya st., 4/5, Moscow, Russia, Revolution Square, +7 (495) 120-33-73 planetiphone.ru/service.