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# usb_modeswitch -s 6 -v 12d1 -p 1446 -V 12d1 -P 1436 -M 55534243123456780000000000000011062000000100000000 000000000000
Looking for target devices ...
No devices in target mode or class found
Looking for default devices ...
No devices in default mode found. Nothing to do. Bye.
# ls -la /dev/tty*
crw-rw-rw- 1 root root 5, 0 Apr 21 18:04 /dev/tty
crw------- 1 root root 249, 0 Apr 21 18:04 /dev/ttyGS0
crw------- 1 root root 249, 1 Apr 21 18:04 /dev/ttyGS1
crw------- 1 root root 249, 2 Apr 21 18:04 /dev/ttyGS2
crw------- 1 root root 249, 3 Apr 21 18:04 /dev/ttyGS3
crw------- 1 root root 252, 0 Apr 21 18:04 /dev/ttyO0
crw------- 1 root root 252, 1 Apr 21 18:04 /dev/ttyO1
crw------- 1 root root 252, 2 Apr 21 18:04 /dev/ttyO2
#dmesg
[ 2338.794708] hub 1-0:1.0: Cannot enable port 1. Maybe the USB cable is bad?
[ 2338.795043] hub 1-0:1.0: unable to enumerate USB device on port 1
Bus 002 Device 013: ID 12d1:1446 Huawei Technologies Co., Ltd. E1552 (HSPA modem)
3g stick ON
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