I'm using Mac OS X. I bought this Huawei E3531 because I need to use it as a GSM modem trough AT commands to send SMS. Connection is fine and all works great, but I need to switch the mode so that it can works as a serial modem and I can connect to it trought the screen command
screen /dev/tty...
According to this post Trying to use the AT command with an Huawei E3531 I'm trying to switch the mode. Problem is that it doesn't work. Here I show you my moves. First of all I need to find the vendor Id and the Product Id of this product so I launch the following command:
lsusb
I find this line very interessant:
Bus 038 Device 003: ID 12d1:14dc Huawei Technologies Co., Ltd. HUAWEI Mobile
So, the vendor Id is 12d1 and the product id is 14dc. Now I want to switch the mode by this command:
sudo usb_modeswitch -R -v 12d1 -p 14dc -W -M '55534243123456780000000000000011062000000100000000000000000000'
As result it gives me the following log:
MacBook-Pro-di-mac:usb-modeswitch-2.5.2 mac$ sudo ./usb_modeswitch -R -v 12d1 -p 14dc -W -M '55534243123456780000000000000011062000000100000000000000000000'
Password:
Take all parameters from the command line
* usb_modeswitch: handle USB devices with multiple modes
* Version 2.5.2 (C) Josua Dietze 2017
* Based on libusb1/libusbx
! PLEASE REPORT NEW CONFIGURATIONS !
DefaultVendor= 0x12d1
DefaultProduct= 0x14dc
MessageContent="55534243123456780000000000000011062000000100000000000000000000"
Look for default devices ...
found USB ID 12d1:14dc
vendor ID matched
product ID matched
found USB ID 05ac:8213
found USB ID 05ac:0237
found USB ID 0a5c:4500
found USB ID 05ac:8403
found USB ID 05ac:8242
found USB ID 05ac:8507
Found devices in default mode (1)
Access device 003 on bus 038
Get the current device configuration ...
Current configuration number is 1
Use interface number 0
with class 2
Error: can't use storage command in MessageContent with interface 0; interface class is 2, expected 8. Abort
How can I resolve this error? I searched also in other forum, websites and so on, but didn't find a satisfied solution. Thank you
