Default Mobile Data

Hello, i recently went out of the country, and had to search for new networks as i usually lock mine to one network when home in Norway. When i came home again my mobile data only shows R instead of connecting to 3g.. This has happened to me before, then i just backed up a related file in system and deleted it, restarded my phone, and it worked again.. Now i cant find the xda post where i read where to find that file, any help? I run the latest CM11 nightly on my I9505

Sent from my GT-I9505 using XDA mobile app