User Guide
| Model | Document | |
| Grundig GE-7503 | User Guide | Download |
| Grundig GX-3800 | User Guide | Download |
| Grundig GX-2800 | User Guide | Download |
| Grundig GX-3810-68 | User Guide | Download |
| Grundig GX-3810-80 | User Guide | Download |
Upgrade Software: (Please consalt the )
| Model | Software Version | |
| Grundig GE-7503 | 1.4 | Download |
| Grundig GX-3800 | 221018 | Download Guide |