If you like to use a SD card >2GB update your Bootloader to at least 5.5022 or maybe better I've tested 5.5128
Test first your Navcore, 9.700 or 9.701 doesn't matter without any map
Reset your device and start again, wait till the annoucement NO CARD MAP FOUND or words similarly
Add the Truck map run fastactivate be aware for any error messages, if you don't see them you're more or less OK now.
Look into the Truck folder if there is a .dct file, when it's not there, you're realy in trouble because the patch didn't work.
Read for any file or support my signature, special the tutorial from Lemonfish, please.