You may be able to read device information, such as ESN/MEID and SPC, but not write or change them.
Understanding CDMA Workshop V3.4.1 Demo: A Technical Overview of CDMA Device Programming Cdma Workshop V3.4.1 Demo.rarl
The user launches CDMA Workshop, selects the correct COM port, sets the baud rate (usually 115200), and clicks "Connect." You may be able to read device information,