installed into my new radio. I have a TYT MD-UV380. I downloaded a cvs file with all the USA and Canada users. The file is about 4.6M or so. I go to Read/Write then import the CVS file off the desktop. Plug in the data cable tell it to import the file, then write to radio. It takes 5 min or so to write to the radio. Then i go into the menu, utilities, radio settings, contacts csv, turn on. But when a USA user is transmitting I get ID Unknown. The file doesn't seem to be really installing. What am I doing wrong? I need some help.