Android 12 kills 2G modem. it was already high

It has also been proven that attackers can switch a smartphone’s network from 4G to 2G to carry out the aforementioned attacks on devices that still use the second-generation connection, which can be an excellent way to increase security. Image:

According to a post by Mishaal Rahman, an engineer at Google, the Android

12 includes a number of well-known new features but still has some hidden capabilities, such as the ability to turn off 2G modems on mobile phones that still have this type of hardware.

The option is available within Settings> Network & Internet> SIMs> Allow 2G on devices with Android 12 and basically disables support for this connection, which has encryption weak with several security flaws, which allows hackers to intercept calls and text messages easily.

It has also been proven that attackers can switch a smartphone’s network from 4G to 2G to carry out the aforementioned attacks on devices that still use the second-generation connection, the which can be an excellent way to increase security.

Image: eff

However, while 2G and 3G connections are still in use by millions of people around the world, especially in remote areas where 4G has not yet arrived or has an unreliable signal. So it’s a good idea to check which ones are available in your area before you need them to avoid unnecessary constraints.

Image: XDA

It is worth noting that the option to disable the 2G connectivity requires updating the HAL Radio of a smartphone, so many devices will not have this functionality due to hardware limitations. However, newer phones from Samsung and Google have these updates installed from the factory, allowing you to turn off 2G.

If you are suffering from the 2G problem, there is a solution: make sure your phone has a 4G option that only uses networks, which are significantly more secure.

On some phones, you may use code *#*#4636#to change network settings. You can also use these dialing codes to choose Phone Information 1 and choose between LTE Only, 3G & 4G networks:

Founder of Androidgeek.pt. I’ve been working in IT for ten years. Passionate about technology, Advertising, Digital Marketing, strategic positioning, and of course Android

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