Ciao, le ultime 15 righe sono le seguenti:

bootsplash: status on console 0 changed to on
usb 4-3: device not accepting address 3, error -110
usb 4-3: reset high speed USB device using ehci_hcd and address 3
usb 4-3: device not accepting address 3, error -110
usb 4-3: reset high speed USB device using ehci_hcd and address 3
usb 4-3: device not accepting address 3, error -110
scsi: Device offlined - not ready after error recovery: host 0 channel 0 id 0 lun 0
usb-storage: device scan complete
usbcore: registered new driver ST7554 USB Modem
usb 4-3: USB disconnect, address 3
usb 4-3: new high speed USB device using ehci_hcd and address 4
bootsplash: status on console 0 changed to on
usb 4-3: device not accepting address 4, error -110
usb 4-3: new high speed USB device using ehci_hcd and address 5
usb 4-3: device not accepting address 5, error -110
usb 4-3: new high speed USB device using ehci_hcd and address 6 grazie a presto.............