Xadow GPS v2 (SKU: 113040009)
- The latitude and longitude values are a bit far from my actual location, sometimes it can be around 30km.
Q1: We updated the firmware on github, and you can try to fix it by burning the newest firmware.
Here is the method with a mbed board: http://www.seeedstudio.com/wiki/File:Burn_to_Xadow_modules.zip