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Which Android 9.0 update do you not know? Aug 14, 2018

Google has pushed the latest generation of Android Android 9.0, which is Android Pie. This time Android finally upgraded the big digital version number, and its update is obvious to all. The first impression of the friend who brushed the machine is that the interface has changed, and many function settings have also been humanized. However, for some of the new features in Android 9.0, you may not fully understand them, and these new features are rarely mentioned in the media. Today, let's take a look at some of the fun new features of Android 9.0!

Randomly simulate mac address

We know that each network device has a mac address, which is their hardware identifier in the network. The mac address can be used to manage the network. For example, a blacklist can be established for the mac in the router, and some devices can be disabled for WiFi. In Android 9.0, the ability to randomly simulate mac addresses has been added, which can break many restrictions.

For example, many friends in a university dormitory share a router, and some black-hearted roommates who manage the router may set your phone to a speed limit in the router. But the router is bought by someone else, you can't help it. But if you use Android 9.0 and randomly simulate the mac address, you can't limit your mobile phone speed based on mac for a long time.

Of course, this is not the original intention of this feature design. The new feature of Android 9.0 is mainly to hide your mac address to prevent information tracking and protect user privacy. In Android 9.0, you can turn this feature on in the developer options.

WiFi measurement distance positioning

The use of mobile phone positioning has become a daily routine for everyone, but the current mobile phone positioning has a shortcoming, that is, it is difficult to locate indoors. Indoors, mobile phones are difficult to receive GPS signals, and can only rely on base stations and gyroscopes to detect motion status to know the approximate location. In Android 9.0, there is an indoor positioning method for mobile phones, which is to use WiFi positioning.

Android 9.0 has added the ability to measure distance using WiFi. This is mainly because Google has added support for IEE 802.11mc, which is a specification for wireless network measurement distance. Using the WiFi RTT feature, the phone can measure the time spent moving between different hotspots to calculate a specific location. Moreover, this feature does not require you to connect to WiFi, only need to have 3 or more WiFi hotspots around, then the positioning accuracy can reach one or two meters, very practical.

This new feature of Android 9.0 has great significance for smart homes. For example, you can automatically turn on the lights for you after entering the bathroom, without installing complicated sensors. At the same time, positioning in complex shopping malls is not a problem at all - the mall is the intensive location of WiFi hotspots, which perfectly fits the conditions required for positioning. Later, in the huge shopping mall in Guangzhou Huacheng Square, which lacks signs and is underground, with the Android 9.0 mobile phone, you will never go to the maze again.

With the opening of CarPlay, many friends have become accustomed to using a mobile phone to connect the car's car, so that some of the functions of the phone are projected into the car, and the car can also use the function of the phone. With the iPhone you can connect to the car and use the CarPlay system. With Android you can connect to the car to use Android Auto. In general, the connection of the car is the need to use the data cable, and there has been a wireless connection to CarPlay on the market, now Android 9.0 also supports wireless connection to Android Auto.

Android Auto can be used without a data cable, making it easier to charge with wireless charging

Previously, Google had enabled Pixel and Nexus phones to support Android Auto's wireless connection; while in Android 9.0, all Android devices can connect to Android Auto wirelessly. Many friends may say that Android Auto is rare in China. What does this feature seem to work for? In fact, many of them just hide this function. When you enter the engineering mode of the car, it is very likely that you can activate Android Auto. You can search for specific methods on the Internet.

Support 5 Bluetooth audio devices to connect at the same time

With the popularity of smart homes and the elimination of the trend of headphone jacks, Bluetooth audio devices are getting closer and closer to people. Many friends have more than one Bluetooth audio device, and Android 9.0 has added the characteristics of multiple Bluetooth audio devices connected at the same time.

In the previous Android system, only up to two Bluetooth audio devices could be connected, and the limit was increased to 5 in Android 9.0. However, in Android 9.0 you can't play audio at the same time with 5 Bluetooth devices. After all, the bandwidth of Bluetooth is there. After you can connect these Bluetooth devices, you can quickly switch without having to re-match the connection.

At the same time, there are multiple Bluetooth headsets for Bluetooth speakers, which is more convenient to use.

In Android 9.0, you can find related features of this feature in the developer options. The default is to select only one. If you find that the number of Bluetooth devices that can be connected after upgrading your system has not changed, remember to enable this feature.

Support DNS over TLS connection / force HTTPS

If you are familiar with the network, you should know that there are a lot of security problems that are commonly used in network connections. For example, the DNS mechanism, we access a website, the DNS server needs to resolve the domain name to an IP address, but when connecting to the DNS server is often not encrypted, so the DNS is likely to be hijacked, you enter the correct URL but are jumped to Other websites; for example, ordinary HTTP, the content of the webpage is not encrypted, and it is easy to be inserted into other content such as advertisements with ulterior motives.

Internet connection in Android 9.0 is more secure

In Android 9.0, the system has built-in support for DNS over TLS. If the DNS server supports TLS connections, then the DNS server can be connected in an encrypted manner. Android 9.0 also uses HTTPS to connect to web pages. As long as the site supports HTTPS, it will use encrypted connections. As a result, the situation in which a mobile phone suddenly pops up a carrier advertisement is greatly reduced.

Overall, the update for Android 9.0 is really very sincere. Under the Project Treble mechanism, in fact, many devices have been upgraded to Android 9.0. I hope that major manufacturers can follow up and upgrade as soon as possible, bringing users a better experience.