qui viene spiegato ANt+ radio service novità introdotta nel galaxy s4 android 4.3 THIS IS ANT - ANT+ in Phones and Tablets ti cito anche questo che è accaduto ad un utente quando ha provato a disabilitare il servizio:
- Steps to reproduce the problem.
1. Stop "Ant HAL Service"
2.Disable "Ant HAL Service"
3. Enable "Ant HAL Service"
- What happened.
"Ant HAL service" can't be started.
other observations::- This service was stopped and disabled by user, along with other services. Consequently, contacts stopped being displayed in contact list. when all other services were re-enabled, this service didn't get enabled (even after rebooting of device). Also, contacts list was still not displayed. But, when restored contacts from backup they are shown up.