What happened to the disconnection of Apple 1 1?

If the signal is poor, it is easy to disconnect frequently.

Try the following actions

The first step is to input the mobile phone.

Step 2, enter *300 1# 12345#* on the dial, and then press the call button. The built-in application of iOS will start after field test, and the exact value of signal strength will also appear in the upper left corner.

Step 3, press and hold the iPhone's on button (that is, the power button at the top) until the "slide off" slider appears.

Step 4: Finally, press and hold the Home button until the shutdown slider disappears, and the machine will return to the main screen interface.

Step 5: At this time, the signal strength value will always be displayed in the upper left corner of the iPhone screen, and you can click it to switch between digital and signal grid.

There is actually a hidden application in iPhone usage skills, which can be used to detect iPhone signals and iPhone cellular network values, and can accurately display the strength of mobile phone signals through numbers. And it allows you to switch between the signal grid and the numerical value, as follows: The smaller the numerical value, the worse the signal.

Generally speaking, between -40 and -50 is near the base station;

The signal between -50 and -60 is very good;

Good signal between -60 and -70;

Between-70 and-80, the signal is slightly weak;

Between-80 and-90, the signal is weak;

Below -90 is the basic communication state.

If it is-100, it is recommended to sleep at night or fly in mode, otherwise it will consume a lot of electricity and radiate!

Manual operator selection

IPhone will automatically access the corresponding network according to your card. But sometimes the iPhone will twitch. If your signal is poor, you can try choosing a network manually. Go to Settings-Operator-Turn off Auto, and select the corresponding operator according to your card after searching the network. For example, my mobile card was moved by China.

Switch flight modes

Sometimes when we are in a cross-base station position, the signal will be unstable when diving. You can try to switch flight modes. Turn it on for 5 seconds and then turn it off, and then see if your signal is full of blood.

Reset network

If you try the above two methods, the signal is still so poor, maybe there is something wrong with your network settings. You can try resetting the network to see if the signal has improved! Methods: Enter Settings-General-Restore-Restore Network Settings. Reminder: Restoring the network will not delete any data of the mobile phone, but will clear the wifi password recorded by the mobile phone.

Brush recovery system

If the above methods fail to solve the signal problem, it may be a system or hardware problem. You can try to make a complete backup of your phone with iTunes, and then try to restore it. If it still doesn't work, you can only change the machine during after-sales inspection.