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Old 02-22-2011, 06:14 AM   #1
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Question What are the steps to getting a USB modem to work with Fedora 13

I have tried to get several USB modems to work with Fedora without success. Some time ago I was able to get a Maxon BPS6 to work but I no longer have that unit. I have tried a ZTE 636 which is recognised by the system and have run usb_modeswitch to make it be recognised as a modem and not a cdrom.
Seems that what ever I do the modem produces an error - unable to connect to modem.

Can someone pleaase spell out the steps to take in getting my modem working on a completely fresh install of Fedora 13
Old 02-22-2011, 06:44 AM   #2
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Hi, Welcome to LQ!

LQ has a fantastic search function that may save you time waiting for an answer to a popular question.

With over 4 million posts to search it's possible the answer has been given.
I found a reference for you, from a thread here @LQ

Good article.

Regards Glenn

Last edited by GlennsPref; 02-22-2011 at 06:46 AM.
Old 05-16-2011, 11:35 AM   #3
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Huawei E160/E220 in Slackware 13.0 (solution)

To get your USB dongle (Huawei E160 or Huawei E220) to work: (Slackware Linux 13.0 - kernel but may work on other linux versions)

Step 1: Ensure PPP is compiled into your kernel

Step 2: Ensure that you kernel does not spew any errors or does not panic (see kernel compilation howto in /usr/doc/Linux-HOWTOs)

Step 3: Ensure that your kernel supports USB storage

Step 3a: Ensure that kernel supports USB-Serial (generic usb_serial driver should work)

Step 4: obtain software called comgt (

Step 5: Boot your computer (LOL!)

Step 6: At command prompt login (duh!)

Step 7: su as root user (login as regular user, issue command "su" and put root password - risky to login directly as root)

Step 8: Uncompress comgt.032.tgz (tar -xvzf comgt.032.tgz)

Step 9:build the comgt and install comgt

Step 10:insert Huawei modem

Step 11: Huawei modem shall be detected as CD-ROM drive (/dev/sr1 or /dev/sdb) instead of a 3g modem (check using "dmesg")

Step 12: To switch modes of modem from CD-ROM to a modem, you need to eject the Huawei CD-ROM device using the command (eject
/dev/sr1 or eject /dev/sdb or eject /dev/<whatever is in you dmesg>)

Step 13: To switch modes of huawei modem, use comgt
"comgt -x -d /dev/-usb device-" where -usb device- is ttyUSB0 or ttyUSB1 -- e.g. "comgt -x -d /dev/ttyUSB0"
Some message should display giving you the network provide name and the signal strength!

Step 14: point /dev/modem to your Huawei modem at e.g. /dev/ttyUSB0. If /dev/modem does not exist, then create it LOL! "ln -s /dev/ttyUSB0 /dev/modem"

Step 15: Exit as root user and login as regular user! (if using "su" simply type exit)

Step 16: Start your dialer program - wvdial or kppp

Step 17: konfigure your dialer and dial!

Step 18: A new device "ppp0" will be listed in list of networking hardware (check this using "ifconfig")

Step 19: make sure your put your DNS server addresses in "/etc/resolv.conf" in format "nameserver -DNS server-" where -DNS server- is ip address of DNS server of your ISP

Step 20: enjoy surfing!

Last edited by tix; 05-17-2011 at 11:47 AM. Reason: whoops...ttyUSB0 not USBtty0


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