Shulou(Shulou.com)05/31 Report--

Usually, we know whether the cell phone signal is good or bad through the ladder icon of the status bar. Apple used to use dots before iOS 11, but now it has changed back because of the encroachment of bangs on the top bar space.

Of course, on Android phones, there are many colorful forms of signal display with the help of three-party tools or a lot of personalized ROM.

However, the most intuitive and accurate way to view signal strength more scientifically or to compare between different phones is to look at the values of dBm (decibels of 1 milliwatt) and asu (alone signal unit independent signal units).

­Android natively put this data in the SIM card state, of course, some domestic ROM entry will be different. There are some friends who are quite geek, even with the help of CM, MIUI and other systems, dbm values instead of signal icons are displayed in the status bar.

Due to the difference in the definition of numerical corresponding signal grid number among different manufacturers, dbm can be regarded as a more accurate means of horizontal comparison.

­however, XDA Dev reports that the latest version of AOSP (Android Open Source Project) code shows that Google will allow operators to hide signal strength values in the future.

However, this adjustment does not turn off API from the bottom, which means that three-party APP is still available, such as Wi-Fi analyzers, LTE Discovery, etc.

­because it has only recently emerged, XDA tends to think that this feature will be available on Android P (Android 9.0) next year, but it is not clear why it suddenly did so.

­Note: generally speaking, it is normal when dbm > =-90 ~ (th) ASU > = 10 signal.

Welcome to subscribe "Shulou Technology Information " to get latest news, interesting things and hot topics in the IT industry, and controls the hottest and latest Internet news, technology news and IT industry trends.