You may try the following steps: (1) It may be caused by wrong setting for recording permission. Recording permission refers to the setting that allows the app to use the recording function of your mobile phone. You can check your permission status in “Settings” or “Security Software” and enable Aha Chinese to use the recording function. (2) If you can't find it, you may reinstall the software. In the first time of recording, there will be a prompt for allowing the access of the recording function of the microphone. Please select “Allow”. (2) Confirm that your mobile phone is connected to the Internet and that the network is working properly.