| When the tag information is damaged. | iAUDIO HiFi | 2020/01/08 |
| How to use the user font | iAUDIO HiFi | 2020/01/08 |
| How to reset all settings to factory default | iAUDIO HiFi | 2020/01/08 |
| How to create the playlists | iAUDIO HiFi | 2020/01/08 |
| There is sound quality problem when setting the JetEffect. | iAUDIO HiFi | 2020/01/08 |
| Ive set the incorrect language. | iAUDIO HiFi | 2020/01/08 |
| How to use built-in memory and SD card larger than 64GB | iAUDIO HiFi | 2020/01/08 |
| There is an error while copying the files. | iAUDIO U7 | 2020/01/03 |