I passed to Mint 19. Now device mounts and is operational, but still this error: jmtpfs ~/mtp Device 0 (VID=4102 and PID=1213) is UNKNOWN in libmtp v1.1.13. Please report this VID/PID and the device model to the libmtp development team ignoring libusb_claim_interface() = -6PTP_ERROR_IO: failed to open session, trying again after resetting USB interface LIBMTP libusb: Attempt to reset device ignoring libusb_claim_interface() = -6LIBMTP PANIC: failed to open session on second attempt terminate called...
Support request: VID=4102 and PID=1213 (A&K player SR15, MTP mode only)