Sat Mar 13, 2010 10:33 pm
If you have battery life left, the mini-usb to USB cable should upload and download everything just fine. If you don't, that's the same battery that's used on all 296, 396, 495, 496, and 276C chartplotters - so swap out the battery from your friend's GPS and dig in your box of stuff it came with to find the cable (or get another at a computer store, or from your friend), and the basic mapsource program to download waypoints, routes, and tracks to. If you have another GPS program, or a similar cable, works fine. Heck, I usually use a cable that came with my camera and mapsource topo 2008, works great.
For the future, for swapping waypoints / tracks:
If you have the GPS waypoints / tracks / maps loaded on your computer and a card reader for the optional memory chip, you can load them onto the memory card. When loading your GPS plugged into the computer, tracks and waypoints write to internal memory and only maps write to the memory chip. However, if they are loaded on your card via card reader, your computer reads the waypoints same as if they were loaded in internal memory.
If you're going to send the GPS into Garmin for a warranty (or even an out-of-warranty) repair, pull the optional memory chip (if you have it), the antenna if you have any other the stick it came with, the case, and send only the GPS. Do your darndest to pull all the info off, first, as well - Garmin usually just swaps the broken unit for a refurbished unit, and half the time doesn't check to see if you had additional stuff with it / move the stuff over, and does not transfer data over. (Hey, I can hope if you call and ask and plead and include a letter with, they might, but I haven't seen them do it, so I state it as a sweeping absolute.)