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Old 09-04-2012, 05:26 PM   #1
LQ Newbie
Registered: Aug 2012
Location: USA
Distribution: Redhat Linux,Solaris,Debian,Ubuntu
Posts: 4

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usb modem connection

Hi All!!!!
I am new in Redhat linux and i want to access internet through My USB-Modem(ZTE-K3570) someone told me " wvdialconf " best way to configure USB-Modem but still i am facing error error so kindly help and give me the solution.
i configured USB-Modem like this:-
[root@server ~]# lsusb
Bus 002 Device 001: ID 0000:0000
Bus 001 Device 002: ID 19d2:1007 ONDA Communication S.p.A.
Bus 001 Device 001: ID 0000:0000
[root@server ~]# modprobe usbserial vendor=0x19d2 product=0x1007
[root@server ~]# echo $?
[root@server ~]# wvdialconf create
Scanning your serial ports for a modem.

ttyS0<*1>: ATQ0 V1 E1 -- failed with 2400 baud, next try: 9600 baud
ttyS0<*1>: ATQ0 V1 E1 -- failed with 9600 baud, next try: 115200 baud
ttyS0<*1>: ATQ0 V1 E1 -- and failed too at 115200, giving up.
ttyS1<*1>: ATQ0 V1 E1 -- failed with 2400 baud, next try: 9600 baud
ttyS1<*1>: ATQ0 V1 E1 -- failed with 9600 baud, next try: 115200 baud
ttyS1<*1>: ATQ0 V1 E1 -- and failed too at 115200, giving up.
Port Scan<*1>: S2 S3

Sorry, no modem was detected! Is it in use by another program?
Did you configure it properly with setserial?

Please read the FAQ at

If you still have problems, send mail to
although the USB-MODEM device already connected on com port.but it is still showing " Sorry, no modem was detected! "
so please help
i'll be thankful to yours

Last edited by rock18; 09-04-2012 at 05:31 PM.
Old 09-04-2012, 06:02 PM   #2
LQ Newbie
Registered: Feb 2011
Posts: 21

Rep: Reputation: 1
I have similar problem

USB mobile internet stick - but cant connect.
My lsusb detects the modem as follows:
Bus 001 Device 004: ID 12d1:1003 Huawei Technologies Co., Ltd. E220 HSDPA Modem / E230/E270 HSDPA/HSUPA Modem

All seems fine - I think. So I configure connection from Network Manager icon - as you do so as to create internet connection with any modem in Fedora.

All seems fine there too - though I have read on other forum that it is there - in the configuration part - that something needs to be entered. DNS or something.

But your problem - modem not detected properly - is different. I heard something about having to unlocked the usb stick or something. modprobe was mentioned. good luck


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