#1815 Caterpillar Cat S60: LIBMTP_Get_Storage() failed

[Rostislav]

CatS60 phone, mtp protocol enabled in serrings.
Ubuntu 16.04, libmtp9:amd64 1.1.13-1 (compiled from deb-src)

$ mkdir CATS60
$ mtpfs CATS60
Listing raw device(s)
Device 0 (VID=04b7 and PID=88c0) is a Caterpillar Cat S60.
Found 1 device(s):
Caterpillar: Cat S60 (04b7:88c0) @ bus 2, dev 30
Attempting to connect device
Android device detected, assigning default bug flags
Error 1: Get Storage information failed.
Error 2: PTP Layer error 02fe: get_handles_recursively(): could not get object handles.
Error 2: Error 02fe: PTP Data Expected
Listing File Information on Device with name: (NULL)
LIBMTP_Get_Storage() failed:-1

Looks like an issue in libmtp or even below...
dmesg shows, in particular
usbfs: process 13945 (events) did not claim interface 0 before use

I do not know if it is relevant.

Any ideas?

Thank you!

[Marcus Meissner]

is the device unlocked the file system accessed? hard to say whart is the issue

[Anonymous]

Thanks for the answer. The filesystem is encrypted but perfectly accessible at least for adb, if it is relevant. Is there some special checkbox somewhere deep in menus of Android 6?

Actually I have found a soulution, that might be of use for someone.. "primitive ftpd" app can be used to put/delete files over wifi with sftp. Then "SD scanner" is needed to force update of media metadata, so applications are aware of changes. Works fine, and no cable needed.

[Marcus Meissner]

usually current version of Android need approval for the USB MTP level access , the default is just "charging".