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For a mere $1495!

Those were the days!  I used to be a computer tech here in the Chicago area back when the Apple ][ was gaining it's popularity.  I started out with an Apple/// then a Mac 128.  We also used to service Alpha Micros, a multi user S100 bus machine.  Had a M68000 processor, the same one used in the Mac years later.  Worked for Apple for 10 years until they tried to spend themselves out of business in '96 and laid us all off. 

It became pretty obvious once I dragged it to the Garmin.  The file has been copying since my last post.  Getting old sucks, brain farts have become part of my day. To be honest with you, I didn't even think of looking through the backup files until you mentioned it.

I use a Mac which comes with Time Machine.  It automatically backs up my HD multiple times a day and goes back about six weeks.  If I screw up, I just go back a couple of hours/days and drag the original file to the present and I'm good to go.  If you use a Mac, I highly recommend it, if you don't, there's got to be a similar app for Windows.

I'm new to this board and I find it to be very interesting.  I originally bought the GPSr for Geocaching but the longer I've had it, the more I seem to be concentrating on the technology and other uses for it. I plan on spending some time reading up.  I am curious though, what do you do with all of these wonderful maps that you make besides giving them away to cheapskates like me who don't want to pay Garmin for the US Maps?

First thing I did when I brought it home was to back up the original file structure.  A good backup and helpful folks like yourself are what gives me the freedom to mess around and learn a few things about my GPSr!   I just wasn't sure which file it was.  Thanks for that.

I also noticed that my Topo map is gone.  I can't seem to be able to find the file that contains it.

The unit came with Topo maps installed.  it shows roads but it seems like I get more detail with Ibycus maps installed.  Could be a figment of my imagination.  Garmin has never been very clear on the file structure on the 400 so there are a lot of files that I don't understand.  I don't even know which files represent the Topo maps, to tell the truth.  Maybe that's what the .BIN files are.  They seem to be a bunch of compressed files.

Dan, that did the trick...thank you very much!  The instructions from the Ibycus web site instructed me to download and unzip the file IbycusU2.tar, which produced the uncompressed file IbycusU2.gmapi.  When I ran this file, it had its own installer which ran and that's where my problem began. 

While trying to fix it I found a folder on the Garmin named ExtData which I didn't recognize.  It contained three files:  006-D1221-00.BIN, ARC.BIN, and BEE.BIN.  I backed up these files and deleted them from the Garmin.  Although the 400 is up and running fine, I am curious as to whether these files were added during the install or they are Garmin files that should be on the device.  Do you recognize them?

Thanks again!
-Chris

Greetings,

Using my Mac, I downloaded and installed the US Maps (IbycusU2.gmapi) on my Garmin Colorado 400t.  Now, when I start up, it gets to the point of loading maps, then locks up.  I went into the Garmin to move the maps to the sim card to see if that would work, and to delete it if it didn't.  However, I can't find the maps file (gmapsupp.img) on the Garmin.  Does the gmapi gut a file that is not gmapsupp.img on the Garmin?  Can anyone tell me how I can find the correct file and get it off so I can start over?

Thanks in advance!