mount storage micro-sd de huawei k3520 (vodafone)

[alexcunha]

Tenho um modem usb k3520 p/ banda larga móvel que tem também armazenamento em cartão micro sd.
A parte do modem está a funcionar sem problemas no 9.04 e já o uso desde o 8.10.

O armazenamento do cartão micro-sd não monta. Estou convencido que em algum momento quanto tinha o 8.10 o cartão era montado sem problema.

Para diagnosticar o problema fiz:
 sudo tail -f /var/log/messages

e ligo o modem. Obtenho:

May  3 18:36:17 ac5051 kernel: [18491.464096] usb 2-3: new full speed USB device using ohci_hcd and address 9
May  3 18:36:17 ac5051 kernel: [18491.676819] usb 2-3: configuration #1 chosen from 1 choice
May  3 18:36:17 ac5051 kernel: [18491.681053] usb-storage: probe of 2-3:1.0 failed with error -1
May  3 18:36:17 ac5051 kernel: [18491.681595] usb 2-3: USB disconnect, address 9
May  3 18:36:18 ac5051 kernel: [18492.457049] usb 2-3: new full speed USB device using ohci_hcd and address 10
May  3 18:36:18 ac5051 kernel: [18492.667298] usb 2-3: configuration #1 chosen from 1 choice
May  3 18:36:18 ac5051 kernel: [18492.675590] usb-storage: probe of 2-3:1.0 failed with error -5
May  3 18:36:18 ac5051 kernel: [18492.675635] option 2-3:1.0: GSM modem (1-port) converter detected
May  3 18:36:18 ac5051 kernel: [18492.675870] usb 2-3: GSM modem (1-port) converter now attached to ttyUSB4
May  3 18:36:18 ac5051 kernel: [18492.679820] usb-storage: probe of 2-3:1.1 failed with error -5
May  3 18:36:18 ac5051 kernel: [18492.679863] option 2-3:1.1: GSM modem (1-port) converter detected
May  3 18:36:18 ac5051 kernel: [18492.681255] usb 2-3: GSM modem (1-port) converter now attached to ttyUSB5
May  3 18:36:18 ac5051 kernel: [18492.682822] usb-storage: probe of 2-3:1.2 failed with error -5
May  3 18:36:18 ac5051 kernel: [18492.682845] option 2-3:1.2: GSM modem (1-port) converter detected
May  3 18:36:18 ac5051 kernel: [18492.683226] usb 2-3: GSM modem (1-port) converter now attached to ttyUSB6
May  3 18:36:18 ac5051 kernel: [18492.693171] usb-storage: probe of 2-3:1.3 failed with error -1

Alguma dica?