| How long PLENUE 1 is able to play continuously? | PLENUE 1 | 2017/08/17 |
| Can I set the time to turn off the screen automatically? | PLENUE 1 | 2017/08/17 |
| Computer cannot recognize the player when connected. | PLENUE 1 | 2017/08/17 |
| Product makes a heat. | PLENUE 1 | 2017/08/17 |
| Ive set the incorrect language, and now I cant operate the device. | PLENUE 1 | 2017/08/17 |
| Lost Serial Number | COWON D2 | 2007/01/19 |
| How to Use the Memory Card Larger than 64GB | PLENUE D | 2017/03/23 |
| There is sound quality problem when setting the JetEffect. | PLENUE D | 2017/03/23 |