Depuis la version 4, on ne passe plus par l'USB MASS STORAGE mais par le protocole MTP

# dmesg
[ 2254.973530] usb 1-1: new high-speed USB device number 19 using xhci_hcd
[ 2255.123346] usb 1-1: New USB device found, idVendor=04e8, idProduct=6860, bcdDevice= 4.00
[ 2255.123353] usb 1-1: New USB device strings: Mfr=1, Product=2, SerialNumber=3
[ 2255.123356] usb 1-1: Product: SAMSUNG_Android
[ 2255.123358] usb 1-1: Manufacturer: SAMSUNG
[ 2255.123361] usb 1-1: SerialNumber: a115bb32

$ lsusb
...
Bus 001 Device 019: ID 04e8:6860 Samsung Electronics Co., Ltd Galaxy series, misc. (MTP mode)
...

aptitude install mtp-tools jmtpfs

Brancher l’appareil via le cable USB puis

Créer dans le /home de l'user un point de montage Exemple

$ cd ~
$ mkdir Samsung

$ jmtpfs Samsung/
Device 0 (VID=04e8 and PID=6860) is a Samsung Galaxy models (MTP).
$ cd Samsung 
$ ls
Phone
$ cd Phone
$ ls
Alarms   Documents  Music          Pictures   Ringtones
Android  Download   Notifications  Playlists  Samsung
DCIM     Movies     PhotoEditor    Podcasts   SMemo

$ fusermount -u ~/Samsung

Dans .bash_aliases

alias samsungOn="jmtpfs ~/Samsung/"
alias samsungOut="fusermount -u ~/Samsung"
alias samsungOutForce="fusermount -uz ~/Samsung"

$ source .bashrc

Bon si soucis lors du démontage, utiliser l'alais de secours (-uz)

Jeter un oeil sur le paquet suivant :

aptitude show android-file-transfer
Paquet : android-file-transfer                          
Version : 3.9+dfsg-1+b1
État: non installé
Priorité : optionnel
Section : misc
Responsable : Dylan Aïssi <daissi@debian.org>
Architecture : amd64
Taille décompressée : 1 623 k
Dépend: libc6 (>= 2.14), libfuse2 (>= 2.6), libgcc1 (>= 1:3.0), libqt5core5a (>=
        5.12.2), libqt5gui5 (>= 5.7.0) | libqt5gui5-gles (>= 5.7.0),
        libqt5widgets5 (>= 5.0.2), libreadline8 (>= 6.0), libstdc++6 (>= 9)
Description : reliable MTP client with minimalistic UI
 Android-File-Transfer is a reliable MTP client with minimalistic UI. Its
 features are: 1. Simple Qt UI with progress dialogs. 2. FUSE wrapper,
 supporting partial read/writes, allowing instant access 
     to your files.
 3. No file size limits. 4. Automatically renames album cover to make it visible
 from media player. 5. USB ‘Zerocopy’ support found in recent Linux kernel (no
 user/kernel 
     data copying).
 6. No extra dependencies (e.g. libptp/libmtp). 7. Available as static/shared
 library. 8. Command line tool (aft-mtp-cli).
Site : https://whoozle.github.io/android-file-transfer-linux/