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Thread: 8.10 and USB Modem ZTE MF636BP / MF636

  1. #11
    Join Date
    Aug 2008
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    Ubuntu 12.04 Precise Pangolin

    Re: 8.10 and USB Modem ZTE MF636BP / MF636

    Hi,

    my ZTE MF636 works with 8.10 and Network Manager 0.7
    see post#8 of http://ubuntuforums.org/showthread.php?t=1065934

    bye,
    G

  2. #12
    Join Date
    Apr 2009
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    Exclamation Re: 8.10 and USB Modem ZTE MF636BP / MF636

    Hi, please help me. It worked for me perfectly, but, then I tried to make it work in another computer. so I repeated steps 1 and 2, but missed the step 3. Now I can't get the modem to be detect as a modem, just as a Mass Storage Device. How can I fix it?? PLEASE HELP!!! And thanks in advice!.

    Luis from Paraguay (South America)


    Quote Originally Posted by GeorgeVita View Post
    EDIT >>> MF636 works with 8.10 and Network Manager 0.7 <<<
    see post#8 of http://ubuntuforums.org/showthread.php?t=1065934


    Hi, from google I found helpful info at: http://www.matt-barrett.com/

    I have already tested, worked with my ZTE MF636 on Ubuntu 8.04

    I think that ZTE MF636 3G modem responds by default as an autorun CD drive or as the internal USB hub (19d2:2000) but we need the actual modem which selected after issuing the AT+ZCDRUN=8 (then it responds 19d2:0031 on lsusb terminal command).

    You can try the following steps:

    1. on WinVista through control panel ADD the extra init command AT+ZCDRUN=8
    2. try to connect once with the providers s/w (WinVista)
    3. remove the above command through control panel (WinVista)

    >>> IMPORTANT NOTE: After issuing the above command you can use the modem for Windows and Ubuntu but you cannot install it to another Windows PC. To return the modem to its default condition you have to send AT+ZCDRUN=9 following steps 1,2 and 3.

    All the above are needed bacause there is no Hyperterminal into WinVista. You could also use a serial communication terminal program and send the command AT+ZCDRUN=8 directly to the port (comX) assigned for the ZTE MF636.

    4. boot Ubuntu
    5. open a terminal window and run the command lsusb

    You must see ... 19d2:0031 ... among the responds

    6. run the terminal command:
    sudo modprobe usbserial vendor=0x19d2 product=0x0031

    7. run the terminal command: ls /dev/ttyU*

    You must see: /dev/ttyUSB0 /dev/ttyUSB1 /dev/ttyUSB2
    The modem port is the higher number (/dev/ttyUSB2 in my case).

    8. Finally you must edit the dialler configuration file (from terminal): sudo gedit /etc/wvdial.conf

    My /etc/wvdial.conf is:

    [Dialer Defaults]
    Modem = /dev/ttyUSB2
    Modem Type = Analog Modem
    ISDN = 0
    Baud = 460800
    Dial Attempts = 1
    Username = user
    Password = pass
    Init1 = ATZ
    Init2 = AT&F &D2 &C1
    Init3 = ATS7=60 S30=0 S0=0
    Init4 = AT+CGDCONT=1,"IP","internet"
    Phone = *99***1#
    Stupid Mode = 1

    Possibly you have to place a different APN at Init3 line (instead of "internet") and the appropriate username and password. For these you must ask your provider. SIM PIN check must be disabled!

    Notes for AT Commands used above:
    ATZ soft reset of the modem
    AT&F restore factory settings
    AT&D2&C1 select and use hardware handshake
    ATS7=60 wait up to 60 seconds to connect (if not exit)
    ATS30=0 do not use inactivity timeout (does not disconnect when you are not browsing)
    ATS0=0 do not auto answer to any incoming call

    To connect from a terminal window type: sudo wvdial
    To disconnect press CTRL-C at the same terminal window.

    As reference read (from terminal): man wvdial and man wvdial.conf

    Post me back any question to follow up.

    Regards,
    George

    P.S. Cosmote users from Greece can read my notes in Greek at:
    http://www.acomelectronics.com/Georg...vd_636_el.html

  3. #13
    Join Date
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    Re: 8.10 and USB Modem ZTE MF636BP / MF636

    Hi pcdm79,

    Quote Originally Posted by pcdm79 View Post
    Hi, please help me. It worked for me perfectly, but, then I tried to make it work in another computer. so I repeated steps 1 and 2, but missed the step 3.
    ...
    If you want:

    a. to restore the MF636 to its initial state which it will work with windows, will install in another windows PC but CANNOT work with Ubuntu, you have to send the AT+ZCDRUN=9 from the Ubuntu PC.
    - Connect the modem
    - open a terminal window: echo AT+ZCDRUN=9 > /dev/ttyUSB3
    - from the same terminal window: echo AT+ZCDRUN=9 > /dev/ttyUSB2
    (Sending it to poth ports in case the modem was already attached at boot)
    To use it again: http://ubuntuforums.org/showthread.php?t=1065934 (post#8)
    where at point 2. I have noticed also the alternative usb_modeswitch method (which I have not test it).


    b. to remove the AT+ZCDRUN=8 command from windows (that PC cannot temporarily connect), go to control panel, modem & dialing, properties, advanced and remove this extra init command.
    (I don't remember the actual Windows menu titles. If you cannot find it I have to change my HardDisk and boot Vista or XP)


    Regards,
    George
    Last edited by GeorgeVita; April 8th, 2009 at 06:59 AM.

  4. #14
    Join Date
    Apr 2009
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    Re: 8.10 and USB Modem ZTE MF636BP / MF636

    I had the 636 working on my acer one/ubuntu netbook remix. with the instructions from here, using wvdial, but 2 days latter, if i envoke wvdial, the system just freeze completly.

    Any ideas?

  5. #15
    Join Date
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    Re: 8.10 and USB Modem ZTE MF636BP / MF636

    Hi rochettejessy,

    I have noticed that booting with the MF636 attached the system assigns /dev/ttyUSB0-1-2 and not /dev/ttyUSB3 (in my system).

    Can you check if you have this different behavior to your system?

    To test it:
    - boot without modem
    - open a terminal window and: lsusb
    - shutdown
    - reboot with the modem attached
    - open a terminal window and: lsusb

    Post here the results,
    G

  6. #16
    Join Date
    Apr 2009
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    Re: 8.10 and USB Modem ZTE MF636BP / MF636

    jessy@jessy:~$ echo PRIOR TO MODEM CONECT
    PRIOR TO MODEM CONECT
    jessy@jessy:~$ sudo lsusb
    [sudo] password for jessy:
    Bus 005 Device 002: ID 064e:d101 Suyin Corp.
    Bus 005 Device 001: ID 0000:0000
    Bus 004 Device 001: ID 0000:0000
    Bus 003 Device 001: ID 0000:0000
    Bus 002 Device 001: ID 0000:0000
    Bus 001 Device 001: ID 0000:0000
    jessy@jessy:~$ echo CONNECTIONG MODEM
    CONNECTIONG MODEM
    jessy@jessy:~$ sudo modprobe usbserial vendor=0x19d2 product=0x0031
    jessy@jessy:~$ sudo modprobe usbserial vendor=0x19d2 product=0x0031
    jessy@jessy:~$ lsusb
    Bus 005 Device 003: ID 19d2:0031
    Bus 005 Device 002: ID 064e:d101 Suyin Corp.
    Bus 005 Device 001: ID 0000:0000
    Bus 004 Device 001: ID 0000:0000
    Bus 003 Device 001: ID 0000:0000
    Bus 002 Device 001: ID 0000:0000
    Bus 001 Device 001: ID 0000:0000
    jessy@jessy:~$

    If i try to connect to modem using a serial port terminal the system completly freezes

    Now if i boot with the card connected i get
    jessy@jessy:~$ sudo modprobe usbserial vendor=0x19d2 product=0x0031
    [sudo] password for jessy:
    jessy@jessy:~$ lsusb
    Bus 005 Device 003: ID 064e:d101 Suyin Corp.
    Bus 005 Device 002: ID 19d2:0031
    Bus 005 Device 001: ID 0000:0000
    Bus 004 Device 001: ID 0000:0000
    Bus 003 Device 001: ID 0000:0000
    Bus 002 Device 001: ID 0000:0000
    Bus 001 Device 001: ID 0000:0000
    jessy@jessy:~$ ls /dev/ttyU*
    /dev/ttyUSB0
    jessy@jessy:~$

    ... so the device seams to be getting detected with no problems, but if i try to communicate with it what so ever, then the entire system crashes (i mean even caplock as no effect... mouse locks where it is).

  7. #17
    Join Date
    Jun 2007
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    3

    Re: 8.10 and USB Modem ZTE MF636BP / MF636

    Hi all, I had similar problems after upgrading from 8.04 and 8.10; everything worked fine on 8.04 then lost the ethernet and USB functions on 8.10. I tried 2 PCs and loading 8.10 fresh or upgrade, similar results.
    Solution: go back to 8.04 !

  8. #18
    Join Date
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    Re: 8.10 and USB Modem ZTE MF636BP / MF636

    Quote Originally Posted by Baiter View Post
    Hi all, I had similar problems after upgrading from 8.04 and 8.10; everything worked fine on 8.04 then lost the ethernet and USB functions on 8.10. I tried 2 PCs and loading 8.10 fresh or upgrade, similar results.
    Solution: go back to 8.04 !
    Hi Baiter, there is also the option returning to a previous steady condition, but I thing we have to try it a little bit more.

    Hi again rochettejessy, one thing I don't like is the only port (/dev/ttyUSB0) showing with ls /dev/ttyUSB* because most cases 3G modems have 2,3 or 4 ports (including the card reader).

    I don't know if the ubuntu netbook remix is the difference. Can you try add the modprobe usbserial to udev (below I copy step 3 from my other post):

    Quote Originally Posted by GeorgeVita View Post
    ...
    3. Make a new "rule" for MF636 to create the usbserial communication port (/dev/ttyUSBx).
    From terminal run: sudo gedit /etc/udev/rules.d/90-zte.rules
    copy paste the following lines (according to post#4 of http://ubuntuforums.org/showthread.php?t=665332):

    ACTION!="add", GOTO="ZTE_End"
    #
    SUBSYSTEM=="usb", SYSFS{idProduct}=="0031",
    SYSFS{idVendor}=="19d2", GOTO="ZTE_Modem"
    #
    LABEL="ZTE_Modem"
    RUN+="/sbin/modprobe usbserial vendor=0x19d2 product=0x0031",
    MODE="660", GROUP="dialout"
    #
    LABEL="ZTE_End"

    Save and Exit from gedit.
    ...
    (full data at post#8 of http://ubuntuforums.org/showthread.php?t=1065934)

    You must reboot without modem, attach it and test again ls /dev/ttyU*

    Regards,
    George

  9. #19
    Join Date
    Apr 2009
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    Re: 8.10 and USB Modem ZTE MF636BP / MF636

    this is my result
    jessy@jessy:~$ lsusb
    Bus 003 Device 001: ID 0000:0000
    Bus 004 Device 001: ID 0000:0000
    Bus 005 Device 003: ID 19d2:0031
    Bus 005 Device 002: ID 064e:d101 Suyin Corp.
    Bus 005 Device 001: ID 0000:0000
    Bus 002 Device 001: ID 0000:0000
    Bus 001 Device 001: ID 0000:0000
    jessy@jessy:~$ ls /dev/ttyU*
    /dev/ttyUSB0
    jessy@jessy:~$

    and i do want to point that i did a clean install, of netbook 8.04 this am. when it did work, i did not however have more that one device. and it was always ttyUSB0

  10. #20
    Join Date
    Aug 2008
    Location
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    Re: 8.10 and USB Modem ZTE MF636BP / MF636

    rochettejessy,
    I assume that previous data were without manually modprobing? Automatically done with the udev rule?

    can you check also from terminal: dmesg
    and copy here only the last lines regarding the modem & ttyUSB0?

    ... it is getting harder!

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