i just put the testmode and the other file on my sd card, i have music files on there too but dont think thats an issue. i put the sd in the slot and turned on the unit. it began the copying and i pressed the copy tab and it was blue and green. than i waited about 10 min and tried closing it. it didnt close. i closed the entire car and went in to check if anything copied. and nothing did. what am i doing wrong and how long do i have to wait? plz help btw i have the f900bt

You need to use the little x in the top right corner of the screen. It helps to use something pointy but not sharp like a used pencil. Some units come with a stylus

ok i got em to close. but what can i do with this program now? do i make changes using the windows on the unit or on my computer for code changes?