It happened only when using systemd as commented at #4.
Please share info which device and version it still happens from? and can try ad-hoc way as "adb shell /sbin/reboot -f" before everything is settled down?
It happened only when using systemd as commented at #4.
Please share info which device and version it still happens from? and can try ad-hoc way as "adb shell /sbin/reboot -f" before everything is settled down?