CM11 is great, but the libraries it's got appears to be heavily targeted toward CDMA mode and less so GSM. If you're a traveler or want to use your device with AT&T/T-Mobile, you'll want to install this patch which loads the AT&T ril onto your device. Without it, I couldn't receive any incoming calls and calls I placed couldn't be hung up (I would be stuck at the "hanging up" screen).
This patch is just two files (libril-qc-qmi-1.so and libril.so) pulled from the AT&T version (jflteatt) of CM11 (specifically, this version: https://download.cyanogenmod.org/get/jenkins/53825/cm-11-20140104-SNAPSHOT-M2-jflteatt.zip).
I'm overseas right now, so I'm only able to test GSM mode, but it's working just fine for me now. If it's not enough for you, you might want to try the two other changes suggested here: https://jira.cyanogenmod.org/browse/CYAN-2362
To summarize, they are:
I didn't need to do either of these things to get it working for me, but you may need to do the first item if you want LTE (I'm currently in a country without LTE, so I can't test).
Flash this for GSM-optimized rils: View attachment jfltevzw-gsm-0.2.zip
Flash this to revert to CDMA-optimized rils: View attachment jfltevzw-cdma-0.2.zip
This patch is just two files (libril-qc-qmi-1.so and libril.so) pulled from the AT&T version (jflteatt) of CM11 (specifically, this version: https://download.cyanogenmod.org/get/jenkins/53825/cm-11-20140104-SNAPSHOT-M2-jflteatt.zip).
I'm overseas right now, so I'm only able to test GSM mode, but it's working just fine for me now. If it's not enough for you, you might want to try the two other changes suggested here: https://jira.cyanogenmod.org/browse/CYAN-2362
To summarize, they are:
- Set telephony.lteOnCdmaDevice=0 in /system/build.prop
- loki_flash the jflteatt CWM with jfltevzw aboot - see here. Note that this is specific to MDK, so don't do this if you're on any other bootloader. Let me know if you want me to create a flashable version of this possible fix.
I didn't need to do either of these things to get it working for me, but you may need to do the first item if you want LTE (I'm currently in a country without LTE, so I can't test).
Flash this for GSM-optimized rils: View attachment jfltevzw-gsm-0.2.zip
Flash this to revert to CDMA-optimized rils: View attachment jfltevzw-cdma-0.2.zip
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