Whether you are reviving an old GPS device or maximizing an Android head unit, this navigation solution offers one of the most complete offline experiences available—provided you install it correctly and respect the legal boundaries of map usage.
| Problem | Likely Cause | Solution | | :--- | :--- | :--- | | “Missing license” error | Corrupted or missing .lyc file | Ensure the license folder contains .lyc files. Re-copy from archive. | | GPS not fixing | Wrong COM port/baud rate | Use a GPS testing tool (e.g., GPSInfo) to find correct settings. | | No voice guidance | Missing TTS voices | Download voices from content/voice/ . Check TTS engine in settings. | | App crashes on startup | Incompatible resolution | Edit sys.txt to match your screen’s exact resolution. | | Maps not showing | Incorrect folder structure | Ensure maps are in iGO/content/map/ and have .fbl extension. | You might ask: Why use an older navigation system like iGO Primo when I have Google Maps or Waze? igoprimo 249613 complete 1 full
[interface] resolution_dir="800_480" vga=1 Whether you are reviving an old GPS device
[device] type="android" (or "wince") [gps] port="2" baud="9600" | | GPS not fixing | Wrong COM