# usb_modeswitch -c /usr/share/usb_modeswitch/19d2\:2000

Looking for target devices ...
 No devices in target mode or class found
Looking for default devices ...
 Found devices in default mode, class or configuration (1)
Accessing device 004 on bus 001 ...
Getting the current device configuration ...
 OK, got current device configuration (1)
Using first interface: 0x00
Using endpoints 0x01 (out) and 0x81 (in)
Not a storage device, skipping SCSI inquiry

USB description data (for identification)
-------------------------
Manufacturer: ZTE,Incorporated
     Product: ZTE WCDMA Technologies MSM
  Serial No.: MF1900AVED010000
-------------------------
Looking for active driver ...
 No driver found. Either detached before or never attached
Setting up communication with interface 0
Using endpoint 0x01 for message sending ...
Trying to send message 1 to endpoint 0x01 ...
 OK, message successfully sent
Reading the response to message 1 (CSW) ...
 OK, response successfully read (13 bytes).
Trying to send message 2 to endpoint 0x01 ...
 OK, message successfully sent
Reading the response to message 2 (CSW) ...
 OK, response successfully read (13 bytes).
Trying to send message 3 to endpoint 0x01 ...
 OK, message successfully sent
Reading the response to message 3 (CSW) ...
 OK, response successfully read (13 bytes).
Resetting response endpoint 0x81
Resetting message endpoint 0x01

Checking for mode switch (max. 20 times, once per second) ...
 (For a better success check provide target IDs or class)
 Original device vanished after switching

Mode switch most likely succeeded. Bye.