1. Red Meter mobile phone default state in the mobile phone lock screen state is unable to receive the notice bar
2. Now let's start setting up the click on the Phone "settings" button.
3. Find "Notification bar settings" Here, we click on it to enter, as shown in the following figure.
4. In the open notification bar to set the interface we will see a "drop down display Settings" as shown in the following figure.
5. Then we click on "Lock screen display" Behind the "open" button, we turn on.
6. (after setting): Press the phone side of the "power button", so that it is in the lock screen state, and then with the finger belly down again to slide the notice bar area, see if you can open the notice bar.
7. So we can click on the "More" button in the notification bar after opening.
8. Here we can customize the switch settings interface, set the click on the phone "back" button.