@Zergling_man the default security is tuned to airport charging ports I guess. I've all seen busses with charging cables for phones.

My mtp experience was
>plug in phone
>KDE can see its files after I permit that on the phone
>rsync music with ... where is the mount?
>kill a process to keep KDE from taking over mtp
>fuse mount mtp
>rsync music - too many open files
>the mount itself is broken
>umount, get KDE to give me a file manager again
>find . -name '*.mp3' -print|tee not-flac-or-wav
>rsync -a ./ --files-from=not-flac-or-wav CopyMusic
>copy CopyMusic in KDE file manager
>paste
>paste doesn't work because the earlier fusemount rsync partially succeeded
>delete all Music on phone
>paste