各位大虾们：
关于我在android上用sim5218可以打电话，发短信.....但上网出现点问题，在浏览网页时，又时候会出现设备断开。终端打印为：hub 1-0:1.0: port 2 disabled by hub (EMI?), re-enabling...
usb 1-2: USB disconnect, address 2
generic ttyUSB0: generic converter now disconnected from ttyUSB0
usbserial_generic 1-2:1.0: device disconnected
generic ttyUSB1: generic converter now disconnected from ttyUSB1
usbserial_generic 1-2:1.1: device disconnected
generic ttyUSB2: generic converter now disconnected from ttyUSB2
usbserial_generic 1-2:1.2: device disconnected
generic ttyUSB3: generic converter now disconnected from ttyUSB3
usbserial_generic 1-2:1.3: device disconnected
generic ttyUSB4: generic converter now disconnected from ttyUSB4
usbserial_generic 1-2:1.4: device disconnected
usb 1-2: new high speed USB device using ehci-omap and address 3
usb 1-2: device descriptor read/64, error -110
usb 1-2: device descriptor read/64, error -110
usb 1-2: new high speed USB device using ehci-omap and address 4
usb 1-2: device descriptor read/64, error -110
usb 1-2: device descriptor read/64, error -110
usb 1-2: new high speed USB device using ehci-omap and address 5
usb 1-2: device not accepting address 5, error -110
usb 1-2: new high speed USB device using ehci-omap and address 6
usb 1-2: device not accepting address 6, error -110
hub 1-0:1.0: unable to enumerate USB device on port 2


这究竟是什么问题 。郁闷中.....

你用的是什么板子?

DM3730

上网时，还会出现/RILJ    ( 1088): [0106]> DEACTIVATE_DATA_CALL 1
D/GSM     ( 1088): [DataConnection] Stop poll NetStat
D/RILJ    ( 1088): WAKE_LOCK_TIMEOUT  mReqPending=1 mRequestList=26
D/RILJ    ( 1088): 0: [20] SET_NETWORK_SELECTION_AUTOMATIC
D/RILJ    ( 1088): 1: [81] SIGNAL_STRENGTH
D/RILJ    ( 1088): 2: [82] DATA_CALL_LIST
D/RILJ    ( 1088): 3: [83] DATA_CALL_LIST
D/RILJ    ( 1088): 4: [84] DATA_CALL_LIST
D/RILJ    ( 1088): 5: [85] DATA_CALL_LIST
D/RILJ    ( 1088): 6: [86] DATA_CALL_LIST
D/RILJ    ( 1088): 7: [87] DATA_CALL_LIST
D/RILJ    ( 1088): 8: [88] DATA_CALL_LIST
D/RILJ    ( 1088): 9: [89] DATA_CALL_LIST
D/RILJ    ( 1088): 10: [90] DATA_CALL_LIST
D/RILJ    ( 1088): 11: [91] DATA_CALL_LIST
D/RILJ    ( 1088): 12: [92] DATA_CALL_LIST
D/RILJ    ( 1088): 13: [93] DATA_CALL_LIST
D/RILJ    ( 1088): 14: [94] DATA_CALL_LIST
D/RILJ    ( 1088): 15: [95] DATA_CALL_LIST
D/RILJ    ( 1088): 16: [96] DATA_CALL_LIST
D/RILJ    ( 1088): 17: [97] DATA_CALL_LIST
D/RILJ    ( 1088): 18: [98] DATA_CALL_LIST
D/RILJ    ( 1088): 19: [99] DATA_CALL_LIST
D/RILJ    ( 1088): 20: [100] DATA_CALL_LIST
D/RILJ    ( 1088): 21: [101] DATA_CALL_LIST
D/RILJ    ( 1088): 22: [102] DATA_CALL_LIST
D/RILJ    ( 1088): 23: [103] DATA_CALL_LIST
D/RILJ    ( 1088): 24: [104] DATA_CALL_LIST
D/RILJ    ( 1088): 25: [105] DATA_CALL_LIST
接着就上不了网，设备没断，好像是PDP上下文.......