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i installed vgps blue 1.3 zip
when i tap to execute file, a blank black screen appears and returns to the main menu, it doesnt work!
what should i do??
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VGPS has 3 versions: VGPS, VGPSBlue and VGPS179
E680i does not support bluetooth API JSR82 so VGPSBlue can not run on your phone (It means that E680i can not work with external Bluetooth GPS receiver). You need to install VGPS instead of VGPSBlue.
The latest version 1.8 has important enhancement "AutoRouting". VGPS is now supporting routetable maps and using A* algorithm for AutoRouting.
You can get the latest version 1.8 to try on your phone from here
Digital Mobile Map