Default [Q] Cyanogen 11 on S4 (sprint) not hanging up or ringing

Hi all, I have this problem after upgrading from CM 10 to 11
I know this had been previously mentioned in another thread

My question is.. With all this unified thing going on with CM11 (no longer flashing to specific carriers) is it safe to flash the AT&T gsm rils setup to a sprint phone

Im posting here because I still do not have permission to post in development related forums (less than 10post)


In file manager

Open settings - ggeneral settings and set acces mode to root access

Search for "build.prop" in /

Edit "" by adding a "U" to the end of the line in build.prop as follows

Reboot and enjoy