Wireless Data Terminal Installation Guide
ZTE Corporation
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have appropriate permission.” after installation might appear because this port is occupied by
modem-manager program. Simply remove modem-manager or change the name after backup, and then
restart the computer to solve this problem.
z
Why doesn't the system automatically load CD-ROM and can't install the driver and UI
software after the data card is inserted?
It's unnecessary to install ZTE driver and UI software since the new version of usb_modeswitch
tool integrates the driver of data card. You can directly connect to the Internet through the system's
dialer. If you need install ZTE UI software, please open /etc/usb_modeswitch.conf, change the
value of DisableSwitching to 1, save the settings, and then insert the data card again. By doing so,
the system can automatically load CD-ROM.
z
How can you make the data card not switch to Modem when you insert the data card
again?
1. Turn on the terminal.
2. Use “sudo vim /etc/usb_modeswitch.conf” to open the file.
3. Press “a” to enter the edit-mode, then move the cursor to DisableSwitching=0 and change the value
to 1.
4. Press “ESC” to quit the edit-mode, then press “:”, input “wq” and click the “Enter” Key.
5. Now the file is saved. You can use “cat /etc/usb_modeswitch.conf” to check whether it is modified
successfully.
6. Insert our data card again. The data card should not be switched to modem.
