[10 III][VoLTE] modem_auto_config.service fails to start

REPRODUCIBILITY: Always
OS VERSION: 4.5.0.24
HARDWARE: Sony Xperia 10 III
UI LANGUAGE: Russian
REGRESSION: No

DESCRIPTION:

After following Xperia 10 III installation guide, VoLTE status is always “Not registered”. Baseband version is 62.0.A.3.163.

Checking further, the modem_auto_config.service unit always fails to start. Journal logs show:

мар 02 16:24:21 Xperia10III systemd[1]: Starting Configure modem for VoLTE....
мар 02 16:24:21 Xperia10III droid-load-modem-files.sh[5597]: Failed to set property 'ro.vendor.ril.mbn_copy_completed' to '1'.
мар 02 16:24:21 Xperia10III droid-load-modem-files.sh[5597]: See dmesg for error reason.
мар 02 16:24:21 Xperia10III dbus-send[5602]: method return time=1709389461.631964 sender=:1.11 -> destination=:1.690 serial=4762 reply_serial=2
мар 02 16:24:21 Xperia10III dbus-send[5602]:    array [
мар 02 16:24:21 Xperia10III dbus-send[5602]:       object path "/ril_0"
мар 02 16:24:21 Xperia10III dbus-send[5602]:       object path "/ril_1"
мар 02 16:24:21 Xperia10III dbus-send[5602]:    ]
мар 02 16:24:21 Xperia10III systemd[1]: Started Configure modem for VoLTE..
мар 02 16:24:21 Xperia10III modem_auto_config[5603]: enabling automatic sw mbn selection
мар 02 16:24:21 Xperia10III modem_auto_config[5603]: library "/odm/lib64/libril-qc-hal-qmi.so" needed or dlopened by "(unknown)" is not accessible for the namespace "(default)"
мар 02 16:24:21 Xperia10III modem_auto_config[5603]: library "/odm/lib64/libril-qc-hal-qmi.so" ("/odm/lib64/libril-qc-hal-qmi.so") needed or dlopened by "(unknown)" is not accessible for the namespace: [name="(default)", ld_library_paths="/usr/libexec/droid-hybris/system/lib64:/system/lib64:/vendor/lib64:/apex/com.android.vndk.v30/lib64", default_library_paths="/system/lib64:/system_ext/lib64", permitted_paths="/system/lib64/drm:/system/lib64/extractors:/system/lib64/hw:/system_ext/lib64:/system/framework:/system/app:/system/priv-app:/system_ext/framework:/system_ext/app:/system_ext/priv-app:/vendor/framework:/vendor/app:/vendor/priv-app:/system/vendor/framework:/system/vendor/app:/system/vendor/priv-app:/odm/framework:/odm/app:/odm/priv-app:/oem/app:/product/framework:/product/app:/product/priv-app:/data:/mnt/expand:/apex/com.android.runtime/lib64/bionic:/system/lib64/bootstrap:/product/lib64"]
мар 02 16:24:21 Xperia10III modem_auto_config[5603]: Failed to get fns (nil) (nil) (nil)
мар 02 16:24:21 Xperia10III modem_auto_config[5603]: invalid handle: (nil)
мар 02 16:24:21 Xperia10III systemd[1]: modem_auto_config.service: Main process exited, code=exited, status=254/n/a
мар 02 16:24:21 Xperia10III systemd[1]: modem_auto_config.service: Failed with result 'exit-code'.
мар 02 16:24:22 Xperia10III systemd[1]: modem_auto_config.service: Service hold-off time over, scheduling restart.
мар 02 16:24:22 Xperia10III systemd[1]: modem_auto_config.service: Start request repeated too quickly.
мар 02 16:24:22 Xperia10III systemd[1]: modem_auto_config.service: Failed with result 'exit-code'.

Kernel log tail:

[129333.209209] rpmh_rsc_send_data: 7 callbacks suppressed
[129333.209214] qcom_rpmh DRV:apps_rsc TCS Busy, retrying RPMH message send: addr=0x30010
[129333.222092] qcom_rpmh DRV:apps_rsc TCS Busy, retrying RPMH message send: addr=0x30010
[129333.287567] qcom_rpmh DRV:apps_rsc TCS Busy, retrying RPMH message send: addr=0x30010
[129333.300550] qcom_rpmh DRV:apps_rsc TCS Busy, retrying RPMH message send: addr=0x30010
[129333.313282] qcom_rpmh DRV:apps_rsc TCS Busy, retrying RPMH message send: addr=0x30010
[129333.332322] binder: 3537:3537 transaction failed 29189/-22, size 32-0 line 3103
[129333.339171] qcom_rpmh DRV:apps_rsc TCS Busy, retrying RPMH message send: addr=0x30010
[129333.365137] qcom_rpmh DRV:apps_rsc TCS Busy, retrying RPMH message send: addr=0x30010
[129333.378204] qcom_rpmh DRV:apps_rsc TCS Busy, retrying RPMH message send: addr=0x30010
[129333.403349] qcom_rpmh DRV:apps_rsc TCS Busy, retrying RPMH message send: addr=0x30010
[129333.416261] qcom_rpmh DRV:apps_rsc TCS Busy, retrying RPMH message send: addr=0x30010
[129334.031913] droid-hal-init: Unable to set property 'ro.vendor.ril.mbn_copy_completed' from uid:0 gid:0 pid:5573: Read-only property was already set
[129334.333616] binder: 3537:3537 transaction failed 29189/-22, size 32-0 line 3103
[129335.273547] droid-hal-init: Unable to set property 'ro.vendor.ril.mbn_copy_completed' from uid:0 gid:0 pid:5584: Read-only property was already set
[129335.334032] binder: 3537:3537 transaction failed 29189/-22, size 32-0 line 3103

PRECONDITIONS:

Xperia 10 III with stock Android.

STEPS TO REPRODUCE:

  1. Install Sailfish OS on Xperia 10 III without updating stock Android.
  2. Try enabling VoLTE.

EXPECTED RESULT:

  1. VoLTE status is “Registered”.

ACTUAL RESULT:

  1. VoLTE always shows “Not registered”.

MODIFICATIONS:

No modifications.

ADDITIONAL INFORMATION:

I confirmed with my operator that VoLTE is enabled for my SIM and the phone model is supported. 4G data works. The phone came with baseband version 62.0.A.3.163, I did not upgrade or downgrade it.