ril-fd , l2_hsic, radio interface, umts_ipc0
ril.fd & umts_ipc0: Wlan advanced konfiguration: Keep Wlan on during sleep - off & open Data Usage, press Menu-button: Restrict background data
radio interface: Do you use the radio? If you don't get Link to SD and freeze the app.
Originally Posted by Braxos
Main reason is unplugging the charger without unlocking lockscreen (swipe to unlock) or unplugging when screen is black.