I2C GPS Upgrade firmware

[Neo360]

Hi,

I have this GPS http://www.drotek.fr/shop/en/88-i2c-pa6c-gps-llc.html

where is the right metod to upload the new code on the atmega on board?

http://code.google.com/p/i2c-gps-nav/downloads/list

I try with FTDI port but arduino get this error: avrdude: stk500_getsync () : not in sync resp=0x00

help me please

[CGN-HMilch]

try to desolder the power-pins on the downside.

now should only the green led blink....

enable
#define NMEA

and upload the code....

now solder the power-pins on the downside and connect like usual