when I used debian 12.7 xfce I somehow installed something that allowed me to access my android device as an external disk and copy data there simply plugin in the usb cable.
I don’t know what I installed anymore.
What application do I need?
This should just work if your Android device’s USB mode is set to Mass Storage, no extra software needed on the PC. It’ll just show up like a thumb drive.
Maybe “kdeconnect”? It can do that any much more.
Thunar should be able to access MTP devices when the gvfs-backends package is installed.
You have an old android so I don’t remember how it was.
Currently there is notification/popup to enable mass storage through USB.
KDE connect works through network so not really through USB. (Works through tethering USB tho)
Also check cable as they ware prone to breaking.
Thunar and: sudo apt install gvfs gvfs-mtp
I haven’t used 13/trixie but with 12/bookworm I use jmtpfs but it’s also available for trixie.
What version of Android though? Very old ones used to show up as mass storage.
android 4.3
Sounds about right. Check the android usb settings. Also try a different cable.