i have problem with install my modem HUAWEI E173 and E3131 and E3372
$ls -l /dev/gsm* > catalog not found,
$lsusb
root@raspberrypi:/home/pi# lsusb
Bus 001 Device 014: ID 12d1:14fe Huawei Technologies Co., Ltd. Modem (Mass Storage Mode)
Bus 001 Device 004: ID 046d:c534 Logitech, Inc. Unifying Receiver
Bus 001 Device 006: ID 0424:7800 Standard Microsystems Corp.
Bus 001 Device 003: ID 0424:2514 Standard Microsystems Corp. USB 2.0 Hub
Bus 001 Device 002: ID 0424:2514 Standard Microsystems Corp. USB 2.0 Hub
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
lsusb
Bus 001 Device 006: ID 12d1:14fe Huawei Technologies Co., Ltd. Modem (Mass Storage Mode)
Bus 001 Device 004: ID 0424:7800 Standard Microsystems Corp.
Bus 001 Device 003: ID 0424:2514 Standard Microsystems Corp. USB 2.0 Hub
Bus 001 Device 002: ID 0424:2514 Standard Microsystems Corp. USB 2.0 Hub
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 001 Device 006: ID 12d1:14fe Huawei Technologies Co., Ltd. Modem (Mass Storage Mode)
Bus 001 Device 004: ID 0424:7800 Standard Microsystems Corp.
Bus 001 Device 003: ID 0424:2514 Standard Microsystems Corp. USB 2.0 Hub
Bus 001 Device 002: ID 0424:2514 Standard Microsystems Corp. USB 2.0 Hub
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
so what’s wrong?
root@raspberrypi:/tmp# /dev/ttyUSB*
bash: /dev/ttyUSB*: no file and catalog
#!/bin/sh -e
#
# rc.local
#
# This script is executed at the end of each multiuser runlevel.
# Make sure that the script will "exit 0" on success or any other
# value on error.
#
# In order to enable or disable this script just change the execution
# bits.
#
# By default this script does nothing.
# Print the IP address
_IP=$(hostname -I) || true
if [ "$_IP" ]; then
printf "My IP address is %s\n" "$_IP"
fi
exit 0
usb_modeswitch -v 12d1 -p 14fe -V 12d1 -P 1506 -M "55534243123456780000000000000011062000000100000000000000000000"
The reason behind the modem not located is a bandwith problem . Because many times we don’t even know how to set the bandwidth properly and it’s a huge problem for us then. I believe that if you are properly set up the bandwidth ten you don’t even face Netgear Router Password Issues and it’s really the main solution for you.