Neddie
Posts: 35
Joined: Tue Feb 02, 2016 6:45 am

can't get 3g modem to work

Thu May 05, 2016 9:43 am

Hi to all.
I'm trying to get a Vodafone K4203 usb stick to work in my raspberry pi 2 , but I'm having no luck.
I have the modem in a powered usb hub.
I've followed instruction from this page:
https://www.thefanclub.co.za/how-to/how ... and-wvdial
but still not working.
My usb stick default vendor/product was 12d1:1f1c
and after installing usb_modeswitch it's now 12d1:14fb , so I'm assuming the "mode switching" has worked , but
now I'm stuck as what to do , as there is still no internet connectivity.
Has anyone got any ideas on how I should proceed with this , I'm a little stuck.
I'm running the latest Jessie.
Cheers
Neddie

drgeoff
Posts: 10765
Joined: Wed Jan 25, 2012 6:39 pm

Re: can't get 3g modem to work

Thu May 05, 2016 9:47 am

Does the modem and SIM card give you internet connectivity when used with your computer?

Neddie
Posts: 35
Joined: Tue Feb 02, 2016 6:45 am

Re: can't get 3g modem to work

Thu May 05, 2016 10:02 am

Yes , I just checked.
When I run wvdial 3gconnect I get:
WvDial: Internet dialer version 1.61
Cannot open /dev/gsmmodem: No such file or directory
Cannot open /dev/gsmmodem: No such file or directory
Cannot open /dev/gsmmodem: No such file or directory

fruitoftheloom
Posts: 23337
Joined: Tue Mar 25, 2014 12:40 pm
Location: Delightful Dorset

Re: can't get 3g modem to work

Fri May 06, 2016 12:12 pm

Neddie wrote:Yes , I just checked.
When I run wvdial 3gconnect I get:
WvDial: Internet dialer version 1.61
Cannot open /dev/gsmmodem: No such file or directory
Cannot open /dev/gsmmodem: No such file or directory
Cannot open /dev/gsmmodem: No such file or directory
Did you try ???? http://www.sakis3g.com
Rather than negativity think outside the box !
RPi 4B 4GB (SSD Boot)..
Asus ChromeBox 3 Celeron is my other computer...

ivian
Posts: 3
Joined: Thu May 05, 2016 1:57 pm

Re: can't get 3g modem to work

Fri May 06, 2016 2:05 pm

/dev/gsmmodem is just a link to the actual tty that the modem is connected to

do a

cat /var/log/messages | grep ttyUSB

and check the USB that has the GSM modem attached, that is the one you need

go to /dev/

check if you have gsmmodem : ls -lsa | grep gsm

the output should be to what is redirected if non, there is no big deal, just go an change the /dev/gsmmode from wv.conf to /dev/ttyUSBx, where x is you gsm USB

give it a try

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