Adam Kos If you still own a 3G phone that doesn't support newer generation networks (i.e. 4G or 5G), you won't be able to surf mobile data very well with it by the end of this year. In the course of 2021, the entire troika of domestic operators will completely switch off this network, which according to them has already survived. This will give way to the 5th generation network. It will cause wrinkles especially for those who still use iPhone 4 and 4S.
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Vodafone turned off 3G already in March, O2 currently intends to do so in May, T-Mobile is not planning to do so until November. The 3rd generation network is 12 years old and entering a well-deserved retirement. It brought really fast mobile data for its time and we all owe it to the boom in mobile technology. It was even so important that manufacturers named their phones after it, see iPhone 3G/3GS. So if you own the aforementioned iPhone 3G, 3GS or iPhone 4 or 4S, by the end of the year you will no longer be able to use "fast" mobile data with it even on the T-Mobile network. The first generation iPhone did not have a 3G network, iPhones 5 and later were already capable of the fourth generation. However, as far as Wi-Fi connection, texting or calling is concerned, of course nothing changes. It should be noted that Apple stopped supporting these phones a long time ago.
iPhone 4(S):
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Not only iPhone, but of course also other manufacturers
The mentioned iPhones are not the only ones that you can no longer surf with outside of Wi-Fi. It will also affect phones from Samsung, Huawei, Honor, Xiaomi, HTC and others. For example, T-Mobile on their website it lists a fairly extensive list of devices that it still registers in its network and whose owners will have to switch to a newer machine. Although in Apple's case it is a "cut-off" of the iPhone 4S, which was introduced in October 2011, phones from other manufacturers without 4G support were produced relatively recently, in 2018.
Modernization cannot be avoided. The frequencies on which the 3G network currently operates will thus be used in much more efficient 4G and 5G networks. And 5G networks are what we mainly want now. It's the same as it used to be with 3G. Even though the phones were already here, the network grew really slowly. It is true, however, that the transition from EDGE at that time was significantly more drastic. With today's 4G/LTE, we will certainly last for a while. Although, if you don't already know, 6G is already scheduled to start testing in China this year. This should be 50x faster than 5G and Samsung would like to launch it in 2028.
