Installation of ZTE AC682 Modem in Ubuntu (Linux)

 

Operating System (OS) : Linux - Ubuntu, Mint

Step 1] Plug-in the ZTE AC682 modem and open Terminal to execute the following two commands to the whether ZTE AC682 modem is identified by operating system

ZoomUltra@Citycell:~$ lsusb
Bus 003 Device 002: ID 09da:000a A4 Tech Co., Ltd Port Mouse
Bus 003 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 002 Device 003: ID 19d2:ffde ONDA Communication S.p.A.
Bus 002 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub

Here we get vendor id (19d2) and product id (ffde) of ZTE AC682 modem. However product id as ffde means that the modem acts as a storage device or a CD-ROM rather than as a modem.

Step 2] Now, we need to eject CD-ROM named as Zoom by right clicking on the icon. or execute the following command.

ZoomUltra@Citycell:~$ sudo eject

Note: USB mode switch software not necessary for this modem.






Step 3] Now execute lsusb command again to confirm whether product id changed from ffde to ffdd.
ZoomUltra@Citycell:~$ lsusb
Bus 003 Device 002: ID 09da:000a A4 Tech Co., Ltd Port Mouse
Bus 003 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hubBus 002 Device 004: ID 19d2:ffdd ONDA Communication S.p.A.
Bus 002 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Note: if product id not changed then unplug the ZTE AC682 device and re-plug it and execute the command again.


Step 4] Now give parameters to kernel for identification of the modem and to do this use the following command
ZoomUltra@Citycell:~$ sudo  modprobe   usbserial  vendor=0x19d2  product=0xffdd



Step 5] Execute wvdialconf command to modify the file, /etc/wvdial.conf on the basis of ZTE AC682 modem identified by kernel.
ZoomUltra@Citycell:~$ sudo wvdialconf
Editing `/etc/wvdial.conf'.
Scanning your serial ports for a modem.
….........................
…..........................
ttyUSB0<*1>: ATQ0 V1 E1 -- OK
ttyUSB0<*1>: ATQ0 V1 E1 Z -- OK
ttyUSB0<*1>: ATQ0 V1 E1 S0=0 -- OK
ttyUSB0<*1>: ATQ0 V1 E1 S0=0 &C1 -- OK
ttyUSB0<*1>: ATQ0 V1 E1 S0=0 &C1 &D2 -- OK
ttyUSB0<*1>: ATQ0 V1 E1 S0=0 &C1 &D2 +FCLASS=0 -- OK
ttyUSB0<*1>: Modem Identifier: ATI -- Manufacturer: QUALCOMM INCORPORATED
ttyUSB0<*1>: Speed 9600: AT -- OK
ttyUSB0<*1>: Max speed is 9600; that should be safe.
ttyUSB0<*1>: ATQ0 V1 E1 S0=0 &C1 &D2 +FCLASS=0 -- OK
…............................Found a modem on /dev/ttyUSB0.
Modem configuration written to /etc/wvdial.conf.
ttyUSB0: Speed 9600; init "ATQ0 V1 E1 S0=0 &C1 &D2 +FCLASS=0"

Step 6] Before execute the final command we have to modify the /etc/wvdial.conf file to set phone number, user name and password based on ISP requirement
ZoomUltra@Citycell:~$ sudo gedit /etc/wvdial.conf
[Dialer citycell]
Init2 = ATQ0 V1 E1 S0=0 &C1 &D2 +FCLASS=0
Modem Type = Analog Modem
Phone = #777
ISDN = 0Username = waps
Init1 = ATZPassword = waps
Modem = /dev/ttyUSB0
Baud = 9600


Step End] Execute the wvdail command to get Citycell Ultra Zoom connection
ZoomUltra@Citycell:~$ sudo wvdial citycell
--> WvDial: Internet dialer version 1.60
--> Cannot get information for serial port.
--> Initializing modem.
--> Sending: ATZ
OK
--> Sending: ATQ0 V1 E1 S0=0 &C1 &D2 +FCLASS=0
ATQ0 V1 E1 S0=0 &C1 &D2 +FCLASS=0
OK
--> Modem initialized.
--> Sending: ATDT#777
--> Waiting for carrier.
ATDT#777
CONNECT
--> Carrier detected. Waiting for prompt.
~[7f]}#@!}!} } }=}!}$}%\}"}&} } } } }#}%B#}%}%}&hk#>}'}"}(}" !~
--> PPP negotiation detected.
--> Starting pppd at Fri Dec 3 23:01:31 2010
--> Pid of pppd: 1647
--> Using interface ppp0
--> pppd: ���[08]���[08]
--> pppd: ���[08]���[08]
--> pppd: ���[08]���[08]
--> pppd: ���[08]���[08]
--> pppd: ���[08]���[08]
--> local IP address 10.1.63.194
--> pppd: ���[08]���[08]
--> remote IP address 2.2.2.2
--> pppd: ���[08]���[08]
--> primary DNS address 117.18.224.146
--> pppd: ���[08]���[08]
--> secondary DNS address 117.18.224.147
--> pppd: ���[08]���[08]

To disconnect the Modem, just press Ctrl+C



Note: The following commands need to executive if security purpose unable to run the pppd called by wvdail in normal user mode rather than administration.
ZoomUltra@Citycell:~$ ls -l /usr/sbin/pppd
-rwsr-xr-- 1 root dip 273312 2010-03-07 09:59 /usr/sbin/pppd
ZoomUltra@Citycell:~$ sudo chmod o+x /usr/sbin/pppd
ZoomUltra@Citycell:~$ ls -l /usr/sbin/pppd
-rwsr-xr-x 1 root dip 273312 2010-03-07 09:59 /usr/sbin/pppd


Note: To check IP addresses and connection related other information then execute the following command
ZoomUltra@Citycell:~$ ifconfig
ppp0 Link encap:Point-to-Point Protocol
inet addr:10.1.105.59 P-t-P:2.2.2.2 Mask:255.255.255.255
UP POINTOPOINT RUNNING NOARP MULTICAST MTU:1500 Metric:1
RX packets:4 errors:1 dropped:0 overruns:0 frame:0
TX packets:5 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:3
RX bytes:64 (64.0 B) TX bytes:97 (97.0 B)

If not working then try by another way - http://citycellmodemtroubleshoot.blogspot.com/2011/10/zte-ac682-installation-in-ubuntu.html