1. prepare the device
adb root
adb remount -R
2. build the app
make ChannelSoundingTestApp
3. load the app
adb root
adb remount
adb push ChannelSoundingTestApp.apk /system/priv-app/ChannelSoundingTestApp/ChannelSoundingTestApp.apk
adb push com.android.bluetooth.channelsoundingtestapp.xml /system/etc/permissions/com.android.bluetooth.cs.xml
adb reboot
4. run test
pair devices from settings;
launch APk
one device works as 'Initiator', another device works as 'Responder';