EC200S firmware upgrade

I’m working on EC200S project, my current firmware is EC200SCNAAR01A11M16,

With this firmware, I can’t use AT+CPBW command to write own number, CPBW command failed with “Data unavailabe +CME ERROR: 100”
But another module from my friend with firmware version “EC200SCNABR03A06M16”, CPBW command finished without any error, and AT+CNUM will return the number written by CPBW.

If there is a firmware upgrade for my module, please send me(mailto: the firmware upgreade file and document.

My module’s ATI output is

Revision: EC200SCNAAR01A11M16

Try AT+CPBS="ON" first.