I’m trying to integrate android 9 ril software into my Android 9. The kernel I’m using is 4.14.98.
On my android device the mangOH Red board (with the WP7607) is connected via USB OTG.
The SIM works fine on other devices, also the mangOH board works fine on a windows 10 PC.
I did all the needed changes described in the Android RIL Integration Guide. Now i can receive and send SMS, but i can’t establish a data connection.
The mobile network state is always “disconnected”, while the service status is “In service”.
Wifi is disabled, “Mobile data always active” is enabled. SELinux is running in permissive mode.
There are multiple errors in the radio log, it seems like the “SETUP_DATA_CALL” of the rild fails.
I can’t determine the actual error, maybe someone can find more…
- I first tried it with the AT ril, but it seems like the QMI ril is working better.
Is that true? Which one should be better in Android 9?
- In Android 6 we used pppd. Now in Android 9 there only is dhcpcd to setup the interface. Is pppd still needed? Was it replaced by dhcpcd?
- Might it help to update the firmware? Will the android ril work with newer firmware?
Currently installed: SWI9X07Y_02.16.02.00
Available on Sierra Website: SWI9X07Y_02.28.03.03
Thanks in advance!