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Not everything can be as rosy as it seems, and the hacker Joseph Brown, who was behind phone hacks, is aware of this iPhone from the Sprint, AT&T, Verizon and T-Mobile networks. Brown found that three major mobile operators in cooperation with Applom deliberately control the speed of the Internet connection on these devices, due to which these devices experience a decrease in the data transfer speed. As he found out, the problem is related to the version iPhone for AT&T, Verizon and Sprint, but not for T-Mobile.

As Brown argues, Apple in cooperation with operators, they created a rather complex code, which aims to slow down and limit data transfer speeds, which makes it impossible to achieve maximal transfer rate. Operators have decided to work around this limitation in order to limit the data transmission of phones iPhone. According to Brown, it is the devices with the system iOS they consume the largest amount of data, even when the devices are not active. Brown has published the source codes on his website, which present the limitations of individual operators.

 
AT&T LTE Throttling
Despite the fact that according to the official specifications they support phones iPhone 5 DC-HSDPA+ category 24 networks, Apple phones with the operator AT&T are limited to only receiving the HSDPA category 10 signal. The phone can therefore download data at a speed of only 42,2Mbps instead of the alleged 14,4Mbps. The same case applies to the operator Verizon. According to the hacker, it claims to have "the fastest 4G network in the country", but paradoxically it slows down maximal download speed for phones iPhone. Operating system iOS In addition, 6.1 brought another code that, for a change, causes signal problems for devices offered by American T-Mobile and AT&T.

iPhone_5

*Source: iTweakiOS.com

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