My mobile phone is an iPhone 4s. After upgrading to the latest system, when I open the quilt music, it shows that it keeps loading. . . I had been disappointed for a long time before and felt that I no longer loved being in bed. So I disabled cellular data for Quilt Music, but even so, I still habitually turn on Quilt every day. . . This went on for a long time, until one day, when I opened the Quiet Music again, the Quilt Music window prompted whether to use cellular data. I habitually clicked on the settings to allow the Quiet Music to use the cellular data network, and then clicked on the Quiet Music again. . . . Guess what, it actually worked... (But when I click on the quilt music in the future, it will still keep loading...). Only my method can be used to turn on the quilt music (but this method can only be successful once or twice out of 10 times. It mainly depends on luck. Anyway, I can succeed once a day and it is enough). Prohibit Quilt Music from using cellular mobile data ----- Turn on Quilt Music ----- Quilt Music will pop up a window whether to use cellular data ----- Click the settings of the window ------ Allow Quilt to use cellular data Data ------ Turn on the quilt music again ------ Whether it works or not depends on your luck at the end (if it doesn't work, you can try the steps a few more times, and it will always work once). . .