Rsync to Android
Connecting Android to your Linux you need to use gvfs. Rsync also wants to set files timestams that is why you need this hack.
0. Install gvfs-fuse
For use MTP devices in terminal need to use gvfs-use:
apt install gvfs-fuse
and reboot.
1. Find MTP device in /run/user/1000/gvfs
ls /run/user/1000/gvfs
'mtp:host=Samsung_A7_caf675d6'
Next follow to that folder you need to store your data.