I encounter the problem that my Fairphone FP1U is no longer recognised as a removable storage device on my Ubuntu Linux 15.10 desktop.
I ensured that
USB debugging is enabled under
Could someone advise me please how to proceed with this problem?
USB Debugging should not make any difference (only if you want to use adb).
Is there a notification in the status bar when you connect to your computer? If yes, click it and it will give you several connection options (only charging/MTP/PTP/USB mass storage. You need to choose MTP.)
Sometimes there is no notification at all but still try swiping down the status bar and have a look.
Thank you for all your support!
It turned out that it was not a problem of my phone, nor of my Ubuntu Linux but the cable.
I used a split cable which could charge my phone but did not allow it to be recognised as a removable storage. I have no clue as to why. A conventional cable does work perfectly.