我正在尝试让我的ZTE USB调制解调器连接到我的Raspberry pi 3B +。 这是我的lsusb输出：
Bus 001 Device 005: ID 1611:2800
Bus 001 Device 007: ID 19d2:0031 ZTE WCDMA Technologies MSM MF110/MF627/MF636
Bus 001 Device 004: ID 0424:7800 Standard Microsystems Corp.
Bus 001 Device 003: ID 0424:2514 Standard Microsystems Corp. USB 2.0 Hub
Bus 001 Device 002: ID 0424:2514 Standard Microsystems Corp. USB 2.0 Hub
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
当我运行usbmodem开关时，我得到以下输出：
pi@raspberrypi:~ $ sudo usb_modeswitch -c /etc/usb_modeswitch.conf
Look for target devices ...
product ID matched
Found devices in target mode or class (1)
Look for default devices ...
No devices in default mode found. Nothing to do. Bye!
所以我认为USB调制解调器不在调制解调器模式下？
当我运行wvdial程序时，我在下面得到此输出：
--> WvDial: Internet dialer version 1.61
--> Initializing modem.
--> Sending: ATZ
ATZ
OK
--> Sending: ATQ0 V1 E1 S0=0 &C1 &D2 +FCLASS=0
ATQ0 V1 E1 S0=0 &C1 &D2 +FCLASS=0
OK
--> Sending: AT+CGDCONT=1,"IP","internet.etisalat"
AT+CGDCONT=1,"IP","internet.etisalat"
OK
--> Modem initialized.
--> Sending: ATDT*99#
--> Waiting for carrier.
ATDT*99#
NO CARRIER
--> No Carrier! Trying again.
--> Sending: ATDT*99#
--> Waiting for carrier.
ATDT*99#
NO CARRIER
我的wvdialconf文件是这样的：
Init1 = ATZ
Init2 = ATQ0 V1 E1 S0=0 &C1 &D2 +FCLASS=0
Init3 = AT+CGDCONT=1,"IP","internet.etisalat"
Phone = *99#
ISDN = 0
Username = { }
Password = { }
Modem = /dev/ttyUSB1
#Modem = /dev/gsmmodem
Baud = 460800
Stupid Mode = 1
Modem Type = Analog Modem
和我的usbmodemswitch配置文件看起来像这样：
Init1 = ATZ
Init2 = ATQ0 V1 E1 S0=0 &C1 &D2 +FCLASS=0
Init3 = AT+CGDCONT=1,"IP","internet.etisalat"
Phone = *99#
ISDN = 0
Username = { }
Password = { }
Modem = /dev/ttyUSB1
#Modem = /dev/gsmmodem
Baud = 460800
Stupid Mode = 1
Modem Type = Analog Modem
我也尝试了sakis3g，但是也失败了。 网络和SIM卡是Etisalat i 在埃及。 SIM卡有效。我在两部不同的电话中尝试过，通话和拨号都可以像互联网一样工作。
PPPD也已安装。
使此工作正常的正确方法是什么？ 请帮助我了解我在做什么错。