Apple's mobile phone "Tintin" keeps ringing? Here are 4 simple solutions!

Does your Apple phone suddenly "tinkle" and keep ringing, making you scratch your head? Don't worry, here are four simple ways to help you solve this problem.

One-click cleaning+restart

Slide up from the bottom of the phone, hold for 1 sec, draw the program, and close all backgrounds with one button. Press and hold the power button and volume button, and slide to turn them off. After turning off the power, press and hold the power button again to turn it on.

Adjust audio settings

Open the settings, click "Accessibility", slide down to find "Audio/Video", and turn on the functions of "Mono Audio" and "Telephone Noise Reduction".

Software update

Open the settings, click General and select Software Update to check whether there is a new version. If yes, update immediately.

Restore settings

Open the settings, click General, select Transfer or Restore iPhone, click Restore, and then select Restore All Settings.