Ref

https://ubuntuforums.org/showthread.php?t=2226702

Install

sudo apt-get install libmtp-common mtp-tools libmtp-dev libmtp-runtime libmtp9 android-file-transfer

Get Device Info

lsusb

Bus 002 Device 034: ID 18d1:4ee1 Google Inc. Nexus Device (MTP)
Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 001 Device 003: ID 046d:c52f Logitech, Inc. Unifying Receiver
Bus 001 Device 002: ID 1e7d:2fa8 ROCCAT ROCCAT Suora
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub

Conf

sudo vi /etc/fuse.conf 
...
# Set the maximum number of FUSE mounts allowed to non-root users.
# The default is 1000.
#mount_max = 1000

# Allow non-root users to specify the allow_other or allow_root mount options.
user_allow_other
...

sudo vi /lib/udev/rules.d/69-libmtp.rules
...
# Fairphone 4
ATTR{idVendor}=="18d1", ATTR{idProduct}=="4ee1", SYMLINK+="libmtp-%k", ENV{ID_MTP_DEVICE}="1", ENV{ID_MEDIA_PLAYER}="1"
...

sudo vi /lib/udev/rules.d/51-android.rules
...
 #Fairphone 4
ATTR{idVendor}=="18d1", ATTR{idProduct}=="4ee1", MODE=”0666"
...