This is a summary to help us know how to cr@ck garmin.

 JetMouse Keygen 1.3 & 1.5 : first of all, i guess most people will feel happen with JetMouse Keygen, you can found JetMouse Keygen 1.3 and JetMouse Keygen 1.5 in my blog. it could unlock every product on the market using current Garmin locking technology.

Download: 1.3: http://w13.easy-share.com/1699804442.html 
                  1.5 :http://w15.easy-share.com/1700211381.html
                         http://rapidshare.com/files/109701433/gmkgn15final.rar.html

  and i should say the pwd is ppcwarez

MapSource maps GarminUnlocker:

 Garmin MapSource maps unlocker from Russian forum. i had talked it before: mapsource maps garminunlocker
Just put files from rar-archive somewere & start “All.bat”. And ALL your maps, installed in MapSource will be unlocked. Now you can put your maps to any Garmin device or Mobile XT or Que without *.unl files.
No need any ID for maps & devices at all.

1)Place ‘Garminunlocker’ & ‘All’ files together in a map folder (on desktop worked for me)
2)Run ‘All.bat’ file (dos batch file)
3)It may take a while, but all locked maps are found and unlocked on the PC
4)Copy gmapsupp.img to device
5)Start GPS, maps accepted! Detailed road mapping and routing available!
You can download here: http://w13.easy-share.com/1699712669.html

Unlock Garmin Russian:
Here is old Russian UnlockGarmin for *.img. It d’t work with NT maps, but useful with some custom maps. So I do not suggest use this one, unless you really need it , or want to try.

Now you can downloda here:http://w15.easy-share.com/1700368356.html

IMEI Converter
If you do not know your card ID , you can use this program created your ID
you can download from here http://w15.easy-share.com/1700497774.html
Instructions for the above methods
1)Put your IMEI in the column –> Click convert
You should know the rest of the process to unlock GMXT and maps