Since I am only seeking my device to read the unlocked maps on the sd card, I am thinking that I only need to reverse the firmware on my device. So I only need to follow the steps under " how to reverse back your device to a previous fw". I have looked inside the folder "Garmin" on the GPS and I found only two XML documents; DeviceConfig_2DFootprints_Enabled and GarminDevice. I looked through the latter and found that the software version is 230. I also didn't see the gupdate.gcd inside the Garmin folder. I only have the two XML documents. Thanks again.