| GT-31 Specifications |  |
| BGT-31 Specifications |  |
| GT-31/BGT-31 Quick Start Guide-En |  |
| GT-31/BGT-31 Quick Start Guide-繁中 |  |
| GT-31/BGT-31 Quick Start Guide-简中 |  |
| GT-31/BGT-31 Quick Start Guide-Japan |  |
| GT-31/BGT-31 Owner's Manual-En |  |
| GT-31/BGT-31 Owner's Manual-繁中 |  |
| GT-31 USB Driver Only for Microsoft Windows 98/ME/2000/XP/Vista/Win7 |  |
| GT-31 USB Driver for Mac |  |
| GT-31 USB Driver for Linux |  |
| GT-31/BGT-31 Utility NAViLink II |  |
| GT-31/BGT-31 DM |  |
| GT-31/BGT-31 Owner's Manual-简中 |  |
| GT31 Updater_Installer |  |
| GT-31 setup guide by a windsurfer/kitesurfer Basil Cambanis |  |
| GT-31/BGT-31 Firmware V1.3B1015 ( International Version) Please read Firmware Change Notes in zip file |  |
| GT-31 Firmware V1_3C1015 (實用版/实用版) |  |
| Plan GT-31 Route in Google Map |  |
| GT-31 setup guide (Japanese version) translated by Yoshio Akiyama. |  |
| GT-31 setup guide (Finnish version) translated by Pihla-Maria Takkunen. |  |
| GT-31/BGT-31 Owner's Manual-Franch (Provided by XXcycle) |  |
| GT-31 Firmware Release Note |  |