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(on Wikipedia)
https://www.android.com/

Being able to plug an Android device in and access its storage device(s) within explorer.

First, make sure you use a proper cable.

If your cable is inductive/adsorption charge+data, make sure you know which way it should go. Some of these cables only charge when connected in one direction, but charge and transfer if rotated and connected the other way. Try both orientations! I recommend that even if one orientation works, try the other one just to see the effect. You might want to only charge and not connect.

Windows ∞

2020-08-06 – Android 10 on Windows 10 ∞

(Android, Android 10, Windows 10)

Android 10

1. Enable developer mode
2. Settings > search for “USB”
3. Default USB configuration

4. (o) File transfer

Note that this functionality is intentionally retarded. You cannot actually use the device like a proper USB mass storage device, for various valid but annoying reasons.

• You cannot edit a file in-place.

  • You must copy it to your system, then edit, then transfer it back.
• You cannot make folders on the device itself. For some reason.
• I don’t know how to “eject” the device..

• The options are all greyed out — you have to do this developer mode stuff to change the default, you can’t just change it as you choose.

Android 7.0 on Windows 10 ∞

(Android, Windows 10)

Windows won’t let you do things properly. You may have to copy files from the device to your computer, then make changes, and then copy them back.

Linux ∞

2019-03-08 – Android 7.0 on lubuntu-18.10-desktop-i386 ∞

(Android 7.0, Lubuntu)

When set up, it just works perfectly. You can read/write/edit like anything else.

• mtp-tools 1.1.15-0ubuntu1

• jmtpfs 0.5-2build1

\apt-get  install  mtp-tools  jmtpfs
\mtp-detect
\jmtpfs  -o allow_other  /mnt

2018-01-19 – Android 7.0 on Devuan-1.0.0-jessie-i386-DVD ∞

(Android 7.0, Devuan)

When set up, it just works perfectly. You can read/write/edit like anything else.

• mtp-tools (libmtp) 1.1.8-1+b1

• jmtpfs 0.5-2

\apt-get  install  mtp-tools
\mtp-detect   # then control-c
\jmtpfs  -o allow_other  /mnt

Notes:

• https://wiki.debian.org/mtp
• https://packages.debian.org/search?keywords=jmtpfs

• https://packages.debian.org/search?keywords=mtpfs

apt-get install mtp-tools
mtp-detect

# GUI
apt-get install gmtp

Troubleshooting ∞

• I have a directory “reserved”

• I have a file which has gone missing. It shows up in Linux but the device doesn’t see it.

  • Refreshing, with the file manager, does nothing.
  • Rebooting does nothing.