You may find that the computer cannot detect your device when your Android/IOS device is connected to the computer. Here are some methods to solve this problem.
From How To|Posted by vivi|Updated on 2019-10-01
The post introduces how to make a ringtone on the iPhone and Android. No matter what phone you have, you can learn the methods of setting the ringtone.
From How To|Posted by vivi|Updated on 2019-08-27