Tryag File Manager

//usr/share/dbus-1/system.d/org.freedesktop.fwupd.conf

<?xml version="1.0" encoding="UTF-8"?>

<!DOCTYPE busconfig PUBLIC
 "-//freedesktop//DTD D-BUS Bus Configuration 1.0//EN"
 "http://www.freedesktop.org/standards/dbus/1.0/busconfig.dtd">
<busconfig>

<policy user="root">
    <allow own="org.freedesktop.fwupd"/>
  </policy>

<policy context="default">
    <allow send_destination="org.freedesktop.fwupd"
           send_interface="org.freedesktop.fwupd"/>
    <allow send_destination="org.freedesktop.fwupd"
           send_interface="org.freedesktop.DBus.Properties"/>
    <allow send_destination="org.freedesktop.fwupd"
           send_interface="org.freedesktop.DBus.Introspectable"/>
    <allow send_destination="org.freedesktop.fwupd"
           send_interface="org.freedesktop.DBus.Peer"/>
  </policy>

</busconfig>