SG4 and Mercedes Benz SAP v2 worked natively together for a number of years. In fact, my wife's with rom I9505XXUHPK2 still works, natively.
But then I decided to flash mine with LineageOS 17.1 and, although it paired, it doesn't connect. The display reads "Please insert phone", then "Wait", as it should, but then recycles "Please insert phone" instead of displaying the phone dialer.
The log also cycles and here is an excerpt:
Code: Select all
04-16 11:40:35.976 W/libc (208): Unable to set property "ctl.interface_start" to "android.hardware.radio@1.0::ISap/slot1": error code: 0x20
04-16 11:40:35.977 E/hwservicemanager(208): Failed to set property for starting android.hardware.radio@1.0::ISap/slot1
04-16 11:40:35.974 E/SapRilReceiver(781): getSapProxy: exception: java.util.NoSuchElementException
04-16 11:40:37.322 I/SapRilReceiver(781): notifyShutdown()
04-16 11:40:37.322 D/SapRilReceiver(781): resetSapProxy :null
EDIT: Just to let you know that I filed a bug at LineageOS:
https://gitlab.com/LineageOS/issues/and ... ssues/1801
Thank you,
jss